Untilmanselectsbirdsdifferingintherelativelengthofthewing—
  feathersortoes,etc。,nosensiblechangeinthesepartsshouldbeexpected。Norcouldmandoanythingunlessthesepartshappenedtovaryunderdomestication:Idonotpositivelyassertthatthisisthecase,althoughIhaveseentracesofsuchvariabilityinthewing—feathers,andcertainlyinthetail—feathers。Itwouldbeastrangefactiftherelativelengthofthehindtoeshouldnevervary,seeinghowvariablethefootisbothinsizeandinthenumberofthescutellae。Withrespecttothedomesticracesnotroostingorbuildingintrees,itisobviousthatfancierswouldneverattendtoorselectsuchchangesinhabits;butwehaveseenthatthepigeonsinEgypt,whichdonotforsomereasonlikesettlingonthelowmudhovelsofthenatives,areled,apparentlybycompulsion,toperchincrowdsonthetrees。Wemayevenaffirmthat,ifourdomesticraceshadbecomegreatlymodifiedinanyoftheabovespecifiedrespects,anditcouldbeshownthatfanciershadneverattendedtosuchpoints,orthattheydidnotstandincorrelationwithotherselectedcharacters,thefact,ontheprinciplesadvocatedinthischapter,wouldhaveofferedaseriousdifficulty。
  Letusbrieflysumupthelasttwochaptersonthepigeon。Wemayconcludewithconfidencethatallthedomesticraces,notwithstandingtheirgreatamountofdifference,aredescendedfromtheColumbalivia,includingunderthisnamecertainwildraces。Butthedifferencesbetweenthelatterthrownolightwhateveronthecharacterswhichdistinguishthedomesticraces。
  Ineachbreedorsub—breedtheindividualbirdsaremorevariablethanbirdsinastateofnature;andoccasionallytheyvaryinasuddenandstrongly—markedmanner。Thisplasticityoforganisationapparentlyresultsfromchangedconditionsoflife。Disusehasreducedcertainpartsofthebody。Correlationofgrowthsotiestheorganisationtogether,thatwhenonepartvariesotherpartsvaryatthesametime。Whenseveralbreedshaveoncebeenformed,theirintercrossingaidstheprogressofmodification,andhasevenproducednewsub—breeds。Butas,intheconstructionofabuilding,merestonesorbricksareoflittleavailwithoutthebuilder’sart,so,intheproductionofnewraces,selectionhasbeenthepresidingpower。Fancierscanactbyselectiononexcessivelyslightindividualdifferences,aswellasonthosegreaterdifferenceswhicharecalledsports。Selectionisfollowedmethodicallywhenthefanciertriestoimproveandmodifyabreedaccordingtoaprefixedstandardofexcellence;
  orheactsunmethodicallyandunconsciously,bymerelytryingtorearasgoodbirdsashecan,withoutanywishorintentiontoalterthebreed。Theprogressofselectionalmostinevitablyleadstotheneglectandultimateextinctionoftheearlierandlessimprovedforms,aswellasofmanyintermediatelinksineachlonglineofdescent。Thusithascometopassthatmostofourpresentracesaresomarvellouslydistinctfromeachother,andfromtheaboriginalrock—pigeon。
  CHAPTER1。VII。
  FOWLS。
  BRIEFDESCRIPTIONSOFTHECHIEFBREEDS。
  ARGUMENTSINFAVOUROFTHEIRDESCENTFROMSEVERALSPECIES。
  ARGUMENTSINFAVOUROFALLTHEBREEDSHAVINGDESCENDEDFROMGALLUSBANKIVA。
  REVERSIONTOTHEPARENT—STOCKINCOLOUR。
  ANALOGOUSVARIATIONS。
  ANCIENTHISTORYOFTHEFOWL。
  EXTERNALDIFFERENCESBETWEENTHESEVERALBREEDS。
  EGGS。
  CHICKENS。
  SECONDARYSEXUALCHARACTERS。
  WING—ANDTAIL—FEATHERS,VOICE,DISPOSITION,ETC。
  OSTEOLOGICALDIFFERENCESINTHESKULL,VERTEBRAE,ETC。
  EFFECTSOFUSEANDDISUSEONCERTAINPARTS。
  CORRELATIONOFGROWTH。
  Assomenaturalistsmaynotbefamiliarwiththechiefbreedsofthefowl,itwillbeadvisabletogiveacondenseddescriptionofthem。(7/1。Ihavedrawnupthisbriefsynopsisfromvarioussources,butchieflyfrominformationgivenmebyMr。Tegetmeier。Thisgentlemanhaskindlylookedthroughthischapter;andfromhiswell—knownknowledge,thestatementsheregivenmaybefullytrusted。Mr。Tegetmeierhaslikewiseassistedmeineverypossiblewayinobtainingformeinformationandspecimens。ImustnotletthisopportunitypasswithoutexpressingmycordialthankstoMr。
  B。P。Brent,awell—knownwriteronpoultry,forcontinuousassistanceandthegiftofmanyspecimens。)FromwhatIhavereadandseenofspecimensbroughtfromseveralquartersoftheworld,IbelievethatmostofthechiefkindshavebeenimportedintoEngland,butmanysub—breedsareprobablystillunknownhere。Thefollowingdiscussionontheoriginofthevariousbreedsandontheircharacteristicdifferencesdoesnotpretendtocompleteness,butmaybeofsomeinteresttothenaturalist。Theclassificationofthebreedscannot,asfarasIcansee,bemadenatural。
  Theydifferfromeachotherindifferentdegrees,anddonotaffordcharactersinsubordinationtoeachother,bywhichtheycanberankedingroupundergroup。Theyseemalltohavedivergedbyindependentanddifferentroadsfromasingletype。Eachchiefbreedincludesdifferentlycolouredsub—varieties,mostofwhichcanbetrulypropagated,butitwouldbesuperfluoustodescribethem。Ihaveclassedthevariouscrestedfowlsassub—breedsunderthePolishfowl;butIhavegreatdoubtswhetherthisisanaturalarrangement,showingtrueaffinityorbloodrelationship。Itisscarcelypossibletoavoidlayingstressonthecommonnessofabreed;
  andifcertainforeignsub—breedshadbeenlargelykeptinthiscountrytheywouldperhapshavebeenraisedtotherankofmain—breeds。Severalbreedsareabnormalincharacter;thatis,theydifferincertainpointsfromallwildGallinaceousbirds。AtfirstImadeadivisionofthebreedsintonormalandabnormal,buttheresultwaswhollyunsatisfactory。
  [1。GAMEBREED。
  Thismaybeconsideredasthetypicalbreed,asitdeviatesonlyslightlyfromthewildGallusbankiva,or,asperhapsmorecorrectlynamed,ferrugineus。Beakstrong;combsingleandupright。Spurslongandsharp。
  Featherscloselyappressedtothebody。Tailwiththenormalnumberof14
  feathers。Eggsoftenpalebuff。Dispositionindomitablycourageous,exhibitedeveninthehensandchickens。Anunusualnumberofdifferentlycolouredvarietiesexist,suchasblackandbrown—breastedreds,duckwings,blacks,whites,piles,etc。,withtheirlegsofvariouscolours。
  2。MALAYBREED。
  Bodyofgreatsize,withhead,neck,andlegselongated;carriageerect;
  tailsmall,slopingdownwards,generallyformedof16feathers;combandwattlesmall;ear—lobeandfacered;skinyellowish;featherscloselyappressedtothebody;neck—hacklesshort,narrow,andhard。Eggsoftenpalebuff。Chickensfeatherlate。Dispositionsavage。OfEasternorigin。
  3。COCHIN,ORSHANGAIBREED。
  Sizegreat;wingfeathersshort,arched,muchhiddeninthesoftdownyplumage;barelycapableofflight;tailshort,generallyformedof16
  feathers,developedatalateperiodintheyoungmales;legsthick,feathered;spursshort,thick;nailofmiddletoeflatandbroad;anadditionaltoenotrarelydeveloped;skinyellowish。Combandwattlewelldeveloped。Skullwithdeepmedialfurrow;occipitalforamen,sub—
  triangular,verticallyelongated。Voicepeculiar。Eggsrough,buff—
  coloured。Dispositionextremelyquiet。OfChineseorigin。
  4。DORKINGBREED。
  Sizegreat;bodysquare,compact;feetwithanadditionaltoe;combwelldeveloped,butvariesmuchinform;wattleswelldeveloped;colourofplumagevarious。Skullremarkablybroadbetweentheorbits。OfEnglishorigin。
  ThewhiteDorkingmaybeconsideredasadistinctsub—breed,beingalessmassivebird。
  (FIGURE30。SPANISHFOWL。)
  5。SPANISHBREED(figure30)。
  Tall,withstatelycarriage;tarsilong;combsingle,deeplyserrated,ofimmensesize;wattleslargelydeveloped;thelargeear—lobesandsidesoffacewhite。Plumageblackglossedwithgreen。Donotincubate。Tenderinconstitution,thecombbeingofteninjuredbyfrost。Eggswhite,smooth,oflargesize。Chickensfeatherlatebuttheyoungcocksshowtheirmasculinecharacters,andcrowatanearlyage。OfMediterraneanorigin。
  TheANDALUSIANSmayberankedasasub—breed:theyareofaslaty—bluecolour,andtheirchickensarewellfeathered。Asmaller,short—leggedDutchsub—breedhasbeendescribedbysomeauthorsasdistinct。
  (FIGURE31。HAMBURGHFOWL。)
  6。HAMBURGHBREED(figure31)。
  Sizemoderate;combflat,producedbackwards,coveredwithnumeroussmallpoints;wattleofmoderatedimensions;earlobewhite;legsblueish,thin。
  Donotincubate。Skull,withthetipsoftheascendingbranchesofthepremaxillaryandwiththenasalbonesstandingalittleseparatefromeachother;anteriormarginofthefrontalboneslessdepressedthanusual。
  Therearetwosub—breeds;theSPANGLEDHamburgh,ofEnglishorigin,withthetipsofthefeathersmarkedwithadarkspot;andthePENCILLED
  Hamburgh,ofDutchorigin,withdarktransverselinesacrosseachfeather,andwiththebodyrathersmaller。Boththesesub—breedsincludegoldandsilvervarieties,aswellassomeothersub—varieties。BlackHamburghshavebeenproducedbyacrosswiththeSpanishbreed。
  (FIGURE32。POLISHFOWL。)
  7。CRESTEDORPOLISHBREED(figure32)。
  Headwithalarge,roundedcrestoffeathers,supportedonahemisphericalprotuberanceofthefrontalbones,whichincludestheanteriorpartofthebrain。Theascendingbranchesofpremaxillarybonesandtheinnernasalprocessesaremuchshortened。Theorificeofthenostrilsraisedandcrescentic。Beakshort。Combabsent,orsmallandofcrescenticshape;
  wattleseitherpresentorreplacedbyabeard—liketuftoffeathers。Legsleaden—blue。Sexualdifferencesappearlateinlife。Donotincubate。Thereareseveralbeautifulvarietieswhichdifferincolourandslightlyinotherrespects。
  Thefollowingsub—breedsagreeinhavingacrest,moreorlessdeveloped,withthecomb,whenpresent,ofcrescenticshape。TheskullpresentsnearlythesameremarkablepeculiaritiesofstructureasinthetruePolishfowl。
  SUB—BREED(a)SULTANS。
  ATurkishbreed,resemblingwhitePolishfowlswithalargecrestandbeardwithshortandwell—featheredlegs。Thetailisfurnishedwithadditionalsicklefeathers。Donotincubate。(7。2。ThebestaccountofSultansisbyMissWattsin’ThePoultryYard’1856page79。IowetoMr。Brent’skindnesstheexaminationofsomespecimensofthisbreed。)
  SUB—BREED(b)PTARMIGANS。
  Aninferiorbreedcloselyalliedtothelast,white,rathersmall,legsmuchfeathered,withthecrestpointed;combsmall,cupped;wattlessmall。
  SUB—BREED(c)GHOONDOOKS。
  AnotherTurkishbreedhavinganextraordinaryappearance;blackandtailless;crestandbeardlarge;legsfeathered。Theinnerprocessesofthetwonasalbonescomeintocontactwitheachother,owingtothecompleteabortionoftheascendingbranchesofthepremaxillaries。Ihaveseenanalliedwhite,taillessbreedfromTurkey。
  SUB—BREED(D)CREVE—COEUR。
  AFrenchbreedoflargesize,barelycapableofflight,withshortblacklegs,headcrested,combproducedintotwopointsorhorns,sometimesalittlebranchedlikethehornsofastag;bothbeardandwattlespresent。
  Eggslarge。Dispositionquiet。(7/3。Agooddescription,withfigures,isgivenofthissub—breedinthe’JournalofHorticulture’June10,1862page206。)
  SUB—BREED(e)HORNEDFOWL。
  Withasmallcrest;combproducedintotwogreatpoints,supportedontwobonyprotuberances。
  SUB—BREED(f)HOUDAN。
  AFrenchbreed;ofmoderatesize,short—leggedwithfivetoes,welldeveloped;plumageinvariablymottledwithblack,white,andstraw—yellow;
  headfurnishedwithacrest,onatriplecombplacedtransversely;bothwattlesandbeardpresent。(7/4。Adescription,withfigures,isgivenofthisbreedin’JournalofHorticulture’June3,1862page186。Somewritersdescribethecombastwo—horned。)
  SUB—BREED(g)GUELDERLANDS。
  Nocomb,headsaidtobesurmountedbyalongitudinalcrestofsoftvelvetyfeathers;nostrilssaidtobecrescentic;wattleswelldeveloped;legsfeathered;colourblack。FromNorthAmerica。TheBredafowlseemstobecloselyalliedtotheGuelderland。
  8。BANTAMBREED。
  OriginallyfromJapan(7/5。Mr。Crawfurd’Descript。Dict。oftheIndianIslands’page113。BantamsarementionedinanancientnativeJapaneseEncyclopaedia,asIaminformedbyMr。BirchoftheBritishMuseum。)
  characterisedbysmallsizealone;carriageboldanderect。Thereareseveralsub—breeds,suchastheCochin,Game,andSebrightBantams,someofwhichhavebeenrecentlyformedbyvariouscrosses。TheBlackBantamhasadifferentlyshapedskull,withtheoccipitalforamenlikethatoftheCochinfowl。
  9。RUMPLESSFOWLS。
  Thesearesovariableincharacter(7/6。’OrnamentalandDomesticPoultry’
  1848。)thattheyhardlydeservetobecalledabreed。Anyonewhowillexaminethecaudalvertebraewillseehowmonstrousthebreedis。
  10。CREEPERSORJUMPERS。
  Thesearecharacterisedbyanalmostmonstrousshortnessoflegs,sothattheymovebyjumpingratherthanbywalking;theyaresaidnottoscratchuptheground。IhaveexaminedaBurmesevariety,whichhadaskullofratherunusualshape。
  11。FRIZZLEDORCAFFREFOWLS。
  NotuncommoninIndia,withthefeatherscurlingbackwards,andwiththeprimaryfeathersofthewingandtailimperfect;periosteumofbonesblack。
  12。SILKFOWLS。
  Featherssilky,withtheprimarywingandtail—feathersimperfect;skinandperiosteumofbonesblack;combandwattlesdarkleaden—blue;ear—lappetstingedwithblue;legsthin,oftenfurnishedwithanadditionaltoe。Sizerathersmall。
  13。SOOTYFOWLS。
  AnIndianbreed,havingthepeculiarappearanceofawhitebirdsmearedwithsoot,withblackskinandperiosteum。Thehensalonearethuscharacterised。]
  Fromthissynopsisweseethattheseveralbreedsdifferconsiderably,andtheywouldhavebeennearlyasinterestingforusaspigeons,iftherehadbeenequallygoodevidencethatallhaddescendedfromoneparent—species。
  Mostfanciersbelievethattheyaredescendedfromseveralprimitivestocks。TheRev。E。S。Dixon(7/7。’OrnamentalandDomesticPoultry’1848。)
  arguesstronglyonthissideofthequestion;andonefancierevendenouncestheoppositeconclusionbyasking,"Dowenotperceivepervadingthisspirit,thespiritoftheDEIST?"Mostnaturalists,withtheexceptionofafew,suchasTemminck,believethatallthebreedshaveproceededfromasinglespecies;butauthorityonsuchapointgoesforlittle。Fancierslooktoallpartsoftheworldasthepossiblesourcesoftheirunknownstocks;thusignoringthelawsofgeographicaldistribution。Theyknowwellthattheseveralkindsbreedtrulyevenincolour。Theyassert,but,asweshallsee,onveryweakgrounds,thatmostofthebreedsareextremelyancient。Theyarestronglyimpressedwiththegreatdifferencebetweenthechiefkinds,andtheyaskwithforce,candifferencesinclimate,food,ortreatmenthaveproducedbirdssodifferentastheblackstatelySpanish,thediminutiveelegantBantam,theheavyCochinwithitsmanypeculiarities,andthePolishfowlwithitsgreattop—knotandprotuberantskull?Butfanciers,whilstadmittingandevenoverratingtheeffectsofcrossingthevariousbreeds,donotsufficientlyregardtheprobabilityoftheoccasionalbirth,duringthecourseofcenturies,ofbirdswithabnormalandhereditarypeculiarities;theyoverlooktheeffectsofcorrelationofgrowth——ofthelong—continueduseanddisuseofparts,andofsomedirectresultfromchangedfoodandclimate,thoughonthislatterheadIhavefoundnosufficientevidence;andlastly,theyall,asfarasI
  know,entirelyoverlooktheall—importantsubjectofunconsciousorunmethodicalselection,thoughtheyarewellawarethattheirbirdsdifferindividuallyandthatbyselectingthebestbirdsforafewgenerationstheycanimprovetheirstocks。
  Anamateurwrites(7/8。Ferguson’IllustratedSeriesofRareandPrizePoultry’1834page6Preface。)asfollows:"Thefactthatpoultryhaveuntillatelyreceivedbutlittleattentionatthehandsofthefancier,andbeenentirelyconfinedtothedomainsoftheproducerforthemarket,wouldalonesuggesttheimprobabilityofthatconstantandunremittingattentionhavingbeenobservedinbreeding,whichisrequisitetotheconsummatingintheoffspringofanytwobirdstransmittableformsnotexhibitedbytheparents。"Thisatfirstsightappearstrue。ButinafuturechapteronSelection,abundantfactswillbegivenshowingnotonlythatcarefulbreeding,butthatactualselectionwaspractisedduringancientperiods,andbybarelycivilisedracesofman。InthecaseofthefowlIcanadducenodirectfactsshowingthatselectionwasancientlypractised;buttheRomansatthecommencementoftheChristianerakeptsixorsevenbreeds,andColumella"particularlyrecommendsasthebest,thosesortsthathavefivetoesandwhiteears。"(7/9。Rev。E。S。Dixoninhis’OrnamentalPoultry’page203givesanaccountofColumella’swork。)InthefifteenthcenturyseveralbreedswereknownanddescribedinEurope;andinChina,atnearlythesameperiod,sevenkindswerenamed。Amorestrikingcaseisthatatpresent,inoneofthePhilippineIslands,thesemi—barbarousinhabitantshavedistinctnativenamesfornolessthanninesub—breedsoftheGamefowl。(7/10。Mr。Crawfurd’OntheRelationoftheDomesticatedAnimalstoCivilization’separatelyprintedpage6;firstreadbeforetheBrit。Assoc。atOxford1860。)Azara(7/11。’QuadrupedesduParaguay’tome2
  page324。),whowrotetowardsthecloseofthelastcentury,statesthatintheinteriorpartsofSouthAmerica,whereIshouldnothaveexpectedthattheleastcarewouldhavebeentakenofpoultry,ablack—skinnedandblack—
  bonedbreediskept,frombeingconsideredfertileanditsfleshgoodforsickpersons。Noweveryonewhohaskeptpoultryknowshowimpossibleitistokeepseveralbreedsdistinctunlesstheutmostcarebetakeninseparatingthesexes。Willitthenbepretendedthatthosepersonswho,inancienttimesandinsemi—civilisedcountriestookpainstokeepthebreedsdistinct,andwhothereforevaluedthem,wouldnotoccasionallyhavedestroyedinferiorbirdsandoccasionallyhavepreservedtheirbestbirds?
  Thisisallthatisrequired。Itisnotpretendedthatanyoneinancienttimesintendedtoformanewbreed,ortomodifyanoldbreedaccordingtosomeidealstandardofexcellence。Hewhocaredforpoultrywouldmerelywishtoobtain,andafterwardstorear,thebestbirdswhichhecould;butthisoccasionalpreservationofthebestbirdswouldinthecourseoftimemodifythebreed,assurely,thoughbynomeansasrapidly,asdoesmethodicalselectionatthepresentday,Ifonepersonoutofahundredoroutofathousandattendedtothebreedingofhisbirds,thiswouldbesufficient;forthebirdsthustendedwouldsoonbecomesuperiortoothers,andwouldformanewstrain;andthisstrainwould,asexplainedinthelastchapter,slowlyhaveitscharacteristicdifferencesaugmented,andatlastbeconvertedintoanewsub—breedorbreed。Butbreedswouldoftenbeforatimeneglectedandwoulddeteriorate;theywould,however,partiallyretaintheircharacter,andafterwardsmightagaincomeintofashionandberaisedtoastandardofperfectionhigherthantheirformerstandard;ashasactuallyoccurredquiterecentlywithPolishfowls。If,however,abreedwereutterlyneglected,itwouldbecomeextinct,ashasrecentlyhappenedwithoneofthePolishsub—breeds。Wheneverinthecourseofpastcenturiesabirdappearedwithsomeslightabnormalstructure,suchaswithalark—likecrestonitshead,itwouldprobablyoftenhavebeenpreservedfromthatloveofnoveltywhichleadssomepersonsinEnglandtokeeprumplessfowls,andothersinIndiatokeepfrizzledfowls。Andafteratimeanysuchabnormalappearancewouldbecarefullypreserved,frombeingesteemedasignofthepurityandexcellenceofthebreed;foronthisprincipletheRomanseighteencenturiesagovaluedthefifthtoeandthewhiteear—lobeintheirfowls。
  Thusfromtheoccasionalappearanceofabnormalcharacters,thoughatfirstonlyslightindegree;fromtheeffectsoftheuseandthedisuseofparts;
  possiblyfromthedirecteffectsofchangedclimateandfood;fromcorrelationofgrowth;fromoccasionalreversionstooldandlong—lostcharacters;fromthecrossingofbreeds,whenmorethanonehadbeenformed;but,aboveall,fromunconsciousselectioncarriedonduringmanygenerations,thereisnoinsuperabledifficulty,tothebestofmyjudgment,inbelievingthatallthebreedshavedescendedfromsomeoneparent—source。Cananysinglespeciesbenamedfromwhichwemayreasonablysupposethatallaredescended?TheGallusbankivaapparentlyfulfilseveryrequirement。IhavealreadygivenasfairanaccountasIcouldoftheargumentsinfavourofthemultipleoriginoftheseveralbreeds;andnowI
  willgivethoseinfavouroftheircommondescentfromG。bankiva。
  [ButitwillbeconvenientfirstbrieflytodescribealltheknownspeciesofGallus。TheG。sonneratiidoesnotrangeintothenorthernpartsofIndia;accordingtoColonelSykes(7/12。’Proc。Zoolog。Soc。’1832page151。),itpresentsatdifferentheightsoftheGhauts,twostronglymarkedvarieties,perhapsdeservingtobecalledspecies。Itwasatonetimethoughttobetheprimitivestockofallourdomesticbreeds,andthisshowsthatitcloselyapproachesthecommonfowlingeneralstructure;butitshacklespartiallyconsistofhighlypeculiar,hornylaminae,transverselybandedwiththreecolours;andIhavemetnoauthenticaccountofanysuchcharacterhavingbeenobservedinanydomesticbreed。(7/13。
  ThesefeathershavebeendescribedbyDr。W。Marshall’DerZoolog。Garten’
  April1874page124。IexaminedthefeathersofsomehybridsraisedintheZoologicalGardensbetweenthemaleG。sonneratiiandaredgame—hen,andtheyexhibitedthetruecharacterofthoseofG。sonneratii,exceptthatthehornylaminaeweremuchsmaller。)Thisspeciesalsodiffersgreatlyfromthecommonfowl,inthecombbeingfinelyserrated,andintheloinsbeingdestituteoftruehackles。Itsvoiceisutterlydifferent。ItcrossesreadilyinIndiawithdomestichens;andMr。Blyth(7/14。SeealsoanexcellentletteronthePoultryofIndiabyMr。Blythin’Gardener’sChronicle’1851page619。)raisednearly100hybridchickens;buttheyweretenderandmostlydiedwhilstyoung。Thosewhichwererearedwereabsolutelysterilewhencrossedinterseorwitheitherparent。AttheZoologicalGardens,however,some’hybridsofthesameparentagewerenotquitesosterile:Mr。Dixon,asheinformedme,made,withMr。Yarrell’said,particularinquiriesonthissubject,andwasassuredthatoutof50
  eggsonlyfiveorsixchickenswerereared。Some,however,ofthesehalf—
  bredbirdswerecrossedwithoneoftheirparents,namely,aBantam,andproducedafewextremelyfeeblechickens。Mr。Dixonalsoprocuredsomeofthesesamebirdsandcrossedtheminseveralways,butallweremoreorlessinfertile。NearlysimilarexperimentshaverecentlybeentriedonagreatscaleintheZoologicalGardenswithalmostthesameresult。(7/15。
  Mr。S。J。Salterin’NaturalHistoryReview’April1863page276。)Outof500eggs,raisedfromvariousfirstcrossesandhybrids,betweenG。
  sonneratii,bankiva,andvarius,only12chickenswerereared,andoftheseonlythreeweretheproductofhybridsinterse。Fromthesefacts,andfromtheabove—mentionedstrongly—markeddifferencesinstructurebetweenthedomesticfowlandG。sonneratii,wemayrejectthislatterspeciesastheparentofanydomesticbreed。
  Ceylonpossessesafowlpeculiartotheisland,viz。G。stanleyii;thisspeciesapproachessoclosely(exceptinthecolouringofthecomb)tothedomesticfowl,thatMessrs。LayardandKellaert(7/16。SeealsoMr。
  Layard’spaperin’AnnalsandMag。ofNat。History’2ndseriesvolume14
  page62。)wouldhaveconsideredit,astheyinformme,asoneoftheparent—stocks,haditnotbeenforitssingularlydifferentvoice。Thisbird,likethelast,crossesreadilywithtamehens,andevenvisitssolitaryfarmsandravishesthem。Twohybrids,amaleandfemale,thusproduced,werefoundbyMr。Mitfordtobequitesterile:bothinheritedthepeculiarvoiceofG。stanleyii。Thisspecies,then,mayinallprobabilityberejectedasoneoftheprimitivestocksofthedomesticfowl。
  JavaandtheislandseastwardasfarasFloresareinhabitedbyG。varius(orfurcatus),whichdiffersinsomanycharacters——greenplumage,unserratedcomb,andsinglemedianwattle——thatnoonesupposesittohavebeentheparentofanyoneofourbreeds;yet,asIaminformedbyMr。
  Crawfurd(7/17。SeealsoMr。Crawfurd’DescriptiveDict。oftheIndianIslands’1856page113。),hybridsarecommonlyraisedbetweenthemaleG。
  variusandthecommonhen,andarekeptfortheirgreatbeauty,butareinvariablysterile:this,however,wasnotthecasewithsomebredintheZoologicalGardens。Thesehybridswereatonetimethoughttobespecificallydistinct,andwerenamedG。aeneus。Mr。BlythandothersbelievethattheG。temminckii(7/18。DescribedbyMr。G。R。Gray’Proc。
  Zoolog。Soc’1849page62。)(ofwhichthehistoryisnotknown)isasimilarhybrid。SirJ。BrookesentmesomeskinsofdomesticfowlsfromBorneo,andacrossthetailofoneofthese,asMr。Tegetmeierobserved,thereweretransversebluebandslikethosewhichhehadseenonthetail—
  feathersofhybridsfromG。varius,rearedintheZoologicalGardens。ThisfactapparentlyindicatesthatsomeofthefowlsofBorneohavebeenslightlyaffectedbycrosseswithG。varius,butthecasemaypossiblybeoneofanalogousvariation。ImayjustalludetotheG。giganteus,sooftenreferredtoinworksonpoultryasawildspecies;butMarsden(7/19。ThepassagefromMarsdenisgivenbyMr。Dixoninhis’PoultryBook’page176。
  Noornithologistnowranksthisbirdasadistinctspecies。)thefirstdescriber,speaksofitasatamebreed;andthespecimenintheBritishMuseumevidentlyhastheaspectofadomesticvariety。
  Thelastspeciestobementioned,namely,Gallusbankiva,hasamuchwidergeographicalrangethanthethreepreviousspecies;itinhabitsNorthernIndiaasfarwestasSinde,andascendstheHimalayatoaheightof4000
  ft。;itinhabitsBurmah,theMalaypeninsula,theIndo—Chinesecountries,thePhilippineIslands,andtheMalayanarchipelagoasfareastwardasTimor。Thisspeciesvariesconsiderablyinthewildstate。Mr。Blythinformsmethatthespecimens,bothmaleandfemale,broughtfromneartheHimalaya,areratherpalercolouredthanthosefromotherpartsofIndia;
  whilstthosefromtheMalaypeninsulaandJavaarebrightercolouredthantheIndianbirds。Ihaveseenspecimensfromthesecountries,andthedifferenceoftintinthehackleswasconspicuous。TheMalayanhenswereashaderedderonthebreastandneckthantheIndianhens。TheMalayanmalesgenerallyhadaredear—lappet,insteadofawhiteoneasinIndia;butMr。
  BlythhasseenoneIndianspecimenwithoutthewhiteear—lappet。ThelegsareleadenblueintheIndian,whereastheyshowsometendencytobeyellowishintheMalayanandJavanspecimens。IntheformerMr。Blythfindsthetarsusremarkablyvariableinlength。AccordingtoTemminck(7/20。
  ’Coup—d’oeilgeneralsurl’IndeArchipelagique’tome31849page177;seealsoMr。Blythin’IndianSportingReview’volume2page51856。)theTimorspecimensdifferasalocalracefromthatofJava。Theseseveralwildvarietieshavenotasyetbeenrankedasdistinctspecies;iftheyshould,asisnotunlikely,behereafterthusranked,thecircumstancewouldbequiteimmaterialasfarastheparentageanddifferencesofourdomesticbreedsareconcerned。ThewildG。bankivaagreesmostcloselywiththeblack—breastedredGame—breed,incolouringandinallotherrespects,exceptinbeingsmaller,andinthetailbeingcarriedmorehorizontally。
  Butthemannerinwhichthetailiscarriedishighlyvariableinmanyofourbreeds,for,asMr。Brentinformsme,thetailslopesmuchintheMalays,iserectintheGamesandsomeotherbreeds,andismorethanerectinDorkings,Bantams,etc。Thereisoneotherdifferencenamely,thatinG。
  bankiva,accordingtoMr。Blyth,theneck—hackleswhenfirstmoultedarereplacedduringtwoorthreemonthsnotbyotherhackles,aswithourdomesticpoultry,butbyshortblackishfeathers。(7/21。Mr。Blyth’AnnalsandMag。ofNat。Hist。’2ndseriesvolume11848page455。)Mr。Brent,however,hasremarkedthattheseblackfeathersremaininthewildbirdafterthedevelopmentofthelowerhackles,andappearinthedomesticbirdatthesametimewiththem:sothattheonlydifferenceisthatthelowerhacklesarereplacedmoreslowlyinthewildthaninthetamebird;butasconfinementisknownsometimestoaffectthemasculineplumage,thisslightdifferencecannotbeconsideredofanyimportance。ItisasignificantfactthatthevoiceofboththemaleandfemaleG。bankivacloselyresembles,asMr。Blythandothershavenoted,thevoiceofbothsexesofthecommondomesticfowl;butthelastnoteofthecrowofthewildbirdisratherlessprolonged。CaptainHutton,wellknownforhisresearchesintothenaturalhistoryofIndia,informsmethathehasseenseveralcrossedfowlsfromthewildspeciesandtheChinesebantam;thesecrossedfowlsBRED
  FREELYwithbantams,butunfortunatelywerenotcrossedinterse。CaptainHuttonrearedchickensfromtheeggsoftheGallusbankiva;andthese,thoughatfirstverywild,afterwardsbecamesotamethattheywouldcrowdroundhisfeet。Hedidnotsucceedinrearingthemtomaturity;butasheremarks,"nowildgallinaceousbirdthriveswellatfirstonhardgrain。"
  Mr。BlythalsofoundmuchdifficultyinkeepingG。bankivainconfinement。
  InthePhilippineIslands,however,thenativesmustsucceedbetter,astheykeepwildcockstofightwiththeirdomesticgame—birds。(7/22。
  Crawfurd’Desc。Dict。ofIndianIslands’1856page112。)SirWalterElliotinformsmethatthehenofanativedomesticbreedofPeguisundistinguishablefromthehenofthewildG。bankiva;andthenativesconstantlycatchwildcocksbytakingtamecockstofightwiththeminthewoods。(7/23。InBurmah,asIhearfromMr。Blyth,thewildandtamepoultryconstantlycrosstogether,andirregulartransitionalformsmaybeseen。)Mr。CrawfurdremarksthatfrometymologyitmightbearguedthatthefowlwasfirstdomesticatedbytheMalaysandJavanese。(7/24。Ibidpage113。)Itisalsoacuriousfact,ofwhichIhavebeenassuredbyMr。Blyth,thatwildspecimensoftheGallusbankiva,broughtfromthecountrieseastoftheBayofBengal,arefarmoreeasilytamedthanthoseofIndia;noristhisanunparalleledfact,for,asHumboldtlongagoremarked,thesamespeciessometimesevincesamoretameabledispositioninonecountrythaninanother。IfwesupposethattheG。bankivawasfirsttamedinMalayaandafterwardsimportedintoIndia,wecanunderstandanobservationmadetomebyMr。Blyth,thatthedomesticfowlsofIndiadonotresemblethewildG。
  bankivaofIndiamorecloselythandothoseofEurope。]
  Fromtheextremelycloseresemblanceincolour,generalstructure,andespeciallyinvoice,betweenGallusbankivaandtheGamefowl;fromtheirfertility,asfarasthishasbeenascertained,whencrossed;fromthepossibilityofthewildspeciesbeingtamed,andfromitsvaryinginthewildstate,wemayconfidentlylookatitastheparentofthemosttypicalofallthedomesticbreeds,namely,theGamefowl。Itisasignificantfact,thatalmostallthenaturalistsinIndia,namelySirW。Elliot,Mr。
  S。N。Ward,Mr。Layard,Mr。J。C。Jerdon,andMr。Blyth(7/25。Mr。Jerdoninthe’MadrasJourn。ofLit。andScience’volume22page2speakingofG。
  bankivasays"unquestionablytheoriginofmostofthevarietiesofourcommonfowls。"ForMr。Blythseehisexcellentarticlein’Gardener’sChronicle’1851page619;andin’AnnalsandMag。ofNat。Hist。’volume20
  1847page388。),whoarefamiliarwithG。bankiva,believethatitistheparentofmostorallourdomesticbreeds。ButevenifitbeadmittedthatG。bankivaistheparentoftheGamebreed,yetitmaybeurgedthatotherwildspecieshavebeentheparentsoftheotherdomesticbreeds;andthatthesespeciesstillexist,thoughunknown,insomecountry,orhavebecomeextinct。Theextinction,however,ofseveralspeciesoffowls,isanimprobablehypothesis,seeingthatthefourknownspecieshavenotbecomeextinctinthemostancientandthicklypeopledregionsoftheEast。Thereis,infact,notoneotherkindofdomesticatedbird,ofwhichthewildparent—formisunknown,thatisbecomeextinct。Forthediscoveryofnew,ortherediscoveryofoldspeciesofGallus,wemustnotlook,asfanciersoftenlook,tothewholeworld。Thelargergallinaceousbirds,asMr。Blythhasremarked(7/26。’Gardener’sChronicle’1851page619。),generallyhavearestrictedrange:weseethiswellillustratedinIndia,wherethegenusGallusinhabitsthebaseoftheHimalaya,andissucceededhigherupbyGallophasis,andstillhigherupbyPhasianus。Australia,withitsislands,isoutofthequestionasthehomeforunknownspeciesofthegenus。Itis,also,asimprobablethatGallusshouldinhabitSouthAmerica(7/27。Ihaveconsultedaneminentauthority,Mr。Sclater,onthissubject,andhethinksthatIhavenotexpressedmyselftoostrongly。Iamawarethatoneancientauthor,Acosta,speaksoffowlsashavinginhabitedS。Americaattheperiodofitsdiscovery;andmorerecently,about1795,OlivierdeSerresspeaksofwildfowlsintheforestsofGuiana;thesewereprobablyferalbirds。Dr。Danielltellsme,hebelievesthatfowlshavebecomewildonthewestcoastofEquatorialAfrica;theymay,however,notbetruefowls,butgallinaceousbirdsbelongingtothegenusPhasidus。TheoldvoyagerBarbutsaysthatpoultryarenotnaturaltoGuinea。Capt。W。Allen(’NarrativeofNigerExpedition’1848volume2page42)describeswildfowlsonIlhadosRollas,anislandnearSt。Thomas’sonthewestcoastofAfrica;thenativesinformedhimthattheyhadescapedfromavesselwreckedtheremanyyearsago;theywereextremelywildandhad"acryquitedifferenttothatofthedomesticfowl,"andtheirappearancewassomewhatchanged。Henceitisnotalittledoubtful,notwithstandingthestatementofthenatives,whetherthesebirdsreallywerefowls。Thatthefowlhasbecomeferalonseveralislandsiscertain。Mr。Fry,averycapablejudge,informedMr。
  Layard,inaletter,thatthefowlswhichhaverunwildonAscension"hadnearlyallgotbacktotheirprimitivecolours,red,andblackcocks,andsmoky—greyhens。"Butunfortunatelywedonotknowthecolourofthepoultrywhichwereturnedout。FowlshavebecomeferalontheNicobarIslands(Blythinthe’IndianField’1858page62),andintheLadrones(Anson’sVoyage)。ThosefoundinthePellewIslandsCrawfurd)arebelievedtobeferal;andlastly,itisassertedthattheyhavebecomeferalinNewZealand,butwhetherthisiscorrectIknownot。)asthatahumming—birdshouldbefoundintheOldWorld。FromthecharacteroftheothergallinaceousbirdsofAfrica,itisnotprobablethatGallusisanAfricangenus。WeneednotlooktothewesternpartsofAsia,forMessrs。BlythandCrawfurd,whohaveattendedtothissubject,doubtwhetherGalluseverexistedinawildstateevenasfarwestasPersia。AlthoughtheearliestGreekwritersspeakofthefowlasaPersianbird,thisprobablymerelyindicatesitslineofimportation。ForthediscoveryofunknownspecieswemustlooktoIndia,totheIndo—Chinesecountries,andtothenorthernpartsoftheMalayArchipelago。ThesouthernportionofChinaisthemostlikelycountry;butasMr。Blythinformsme,skinshavebeenexportedfromChinaduringalongperiod,andlivingbirdsarelargelykeptthereinaviaries,sothatanynativespeciesofGalluswouldprobablyhavebecomeknown。Mr。Birch,oftheBritishMuseum,hastranslatedformepassagesfromaChineseEncyclopaediapublishedin1609,butcompiledfrommoreancientdocuments,inwhichitissaidthatfowlsarecreaturesoftheWest,andwereintroducedintotheEast(i。e。China)inadynasty1400B。C。
  Whatevermaybethoughtofsoancientadate,weseethattheIndo—ChineseandIndianregionswereformerlyconsideredbytheChineseasthesourceofthedomesticfowl。Fromtheseseveralconsiderationswemustlooktothepresentmetropolisofthegenus,namely,tothesouth—easternpartsofAsia,forthediscoveryofspecieswhichwereformerlydomesticated,butarenowunknowninthewildstate;andthemostexperiencedornithologistsdonotconsideritprobablethatsuchspecieswillbediscovered。
  Inconsideringwhetherthedomesticbreedsaredescendedfromonespecies,namely,G。bankiva,orfromseveral,wemustnotquiteoverlook,thoughwemustnotexaggerate,theimportanceofthetestoffertility。Mostofourdomesticbreedshavebeensooftencrossed,andtheirmongrelssolargelykept,thatitisalmostcertain,ifanydegreeofinfertilityhadexistedbetweenthem,itwouldhavebeendetected。Ontheotherhand,thefourknownspeciesofGalluswhencrossedwitheachother,orwhencrossed,withtheexceptionofG。bankiva,withthedomesticfowl,produceinfertilehybrids。
  Finally,wehavenotsuchgoodevidencewithfowlsaswithpigeons,ofallthebreedshavingdescendedfromasingleprimitivestock。Inbothcasestheargumentoffertilitymustgoforsomething;inbothwehavetheimprobabilityofmanhavingsucceededinancienttimesinthoroughlydomesticatingseveralsupposedspecies,——mostofthesesupposedspeciesbeingextremelyabnormalascomparedwiththeirnaturalallies,——allbeingnoweitherunknownorextinct,thoughtheparent—formofnootherdomesticatedbirdhasbeenlost。Butinsearchingforthesupposedparent—
  stocksofthevariousbreedsofthepigeon,wewereenabledtoconfineoursearchtospecieshavingpeculiarhabitsoflife;whilstwithfowlsthereisnothingintheirhabitsinanymarkedmannerdistinctfromthoseofothergallinaceousbirds。Inthecaseofpigeons,Ihaveshownthatpurely—
  bredbirdsofeveryraceandthecrossedoffspringofdistinctracesfrequentlyresemble,orrevertto,thewildrock—pigeoningeneralcolourandineachcharacteristicmark。Withfowlswehavefactsofasimilarnature,butlessstronglypronounced,whichwewillnowdiscuss。
  REVERSIONANDANALOGOUSVARIATION。
  Purely—bredGame,Malay,Cochin,Dorking,Bantam,and,asIhearfromMr。
  Tegetmeier,Silkfowls,mayfrequentlyoroccasionallybemetwith,whicharealmostidenticalinplumagewiththewildG。bankiva。Thisisafactwelldeservingattention,whenwereflectthatthesebreedsrankamongstthemostdistinct。Fowlsthuscolouredarecalledbyamateursblack—
  breastedreds。Hamburghsproperlyhaveaverydifferentplumage;
  nevertheless,asMr。Tegetmeierinformsme,"thegreatdifficultyinbreedingcocksofthegolden—spangledvarietyistheirtendencytohaveblackbreastsandredbacks。ThemalesofwhiteBantamsandwhiteCochins,astheycometomaturity,oftenassumeayellowishorsaffrontinge;andthelongerneckhacklesofblackBantamcocks"(7/28。Mr。Hewittin’ThePoultryBook’byW。B。Tegetmeier1866page248。),whentwoorthreeyearsold,notuncommonlybecomeruddy;theselatterBantamsoccasionally"evenmoultbrassy—winged,oractuallyred—shouldered。"SothatintheseseveralcasesweseeaplaintendencytoreversiontothehuesofG。bankiva,evenduringthelifetimeoftheindividualbird。WithSpanish,Polish,pencilledHamburgh,silver—spangledHamburghfowls,andwithsomeotherlesscommonbreeds,Ihaveneverheardofablack—breastedredbirdhavingappeared。
  Frommyexperiencewithpigeons,Imadethefollowingcrosses。Ifirstkilledallmyownpoultry,nootherslivingnearmyhouse,andthenprocured,byMr。Tegetmeier’sassistance,afirst—rateblackSpanishcock,andhensofthefollowingpurebreeds,——whiteGame,whiteCochin,silver—
  spangledPolish,silver—spangledHamburgh,silver—pencilledHamburgh,andwhiteSilk。Innoneofthesebreedsisthereatraceofred,norwhenkeptpurehaveIeverheardoftheappearanceofaredfeather;thoughsuchanoccurrencewouldperhapsnotbeveryimprobablewithwhiteGamesandwhiteCochins。Ofthemanychickensrearedfromtheabovesixcrossesthemajoritywereblack,bothinthedownandinthefirstplumage;somewerewhite,andaveryfewweremottledblackandwhite。InonelotofelevenmixedeggsfromthewhiteGameandwhiteCochinbytheblackSpanishcock,sevenofthechickenswerewhite,andonlyfourblack。Imentionthisfacttoshowthatwhitenessofplumageisstronglyinherited,andthatthebeliefintheprepotentpowerinthemaletotransmithiscolourisnotalwayscorrect。Thechickenswerehatchedinthespring,andinthelatterpartofAugustseveraloftheyoungcocksbegantoexhibitachange,whichwithsomeofthemincreasedduringthefollowingyears。Thusayoungmalebirdfromthesilver—spangledPolishhenwasinitsfirstplumagecoal—
  black,andcombinedinitscomb,crest,wattle,andbeard,thecharactersofbothparents;butwhentwoyearsoldthesecondarywing—feathersbecamelargelyandsymmetricallymarkedwithwhite,and,whereverinG。bankivathehacklesarered,theywereinthisbirdgreenish—blackalongtheshaft,narrowlyborderedwithbrownish—black,andthisagainbroadlyborderedwithverypaleyellowish—brown;sothatingeneralappearancetheplumagehadbecomepale—colouredinsteadofblack。Inthiscase,withadvancingagetherewasagreatchange,butnoreversiontotheredcolourofG。bankiva。
  AcockwitharegularrosecombderivedeitherfromthespangledorpencilledsilverHamburghwaslikewiseatfirstquiteblack;butinlessthanayeartheneck—hackles,asinthelastcase,becamewhitish,whilstthoseontheloinsassumedadecidedreddish—yellowtint;andhereweseethefirstsymptomofreversion;thislikewiseoccurredwithsomeotheryoungcocks,whichneednotherebedescribed。Ithasalsobeenrecorded(7/29。’JournalofHorticulture’January14,1862page325。)byabreeder,thathecrossedtwosilver—pencilledHamburghhenswithaSpanishcock,andrearedanumberofchickens,allofwhichwereblack,thecockshavingGOLDENandthehensbrownishhackles;sothatinthisinstancelikewisetherewasacleartendencytoreversion。