. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland. Birds; Ornithology; Oiseaux; Ornithologie. 792 SySTiJMA TIC SYNOPSIS. â 1' YUUl'ODES. micldlu of tho bnck. The iiiiirkin^ results frnin a isiiiall spot or Htripc near tin; onf cki.), f(!atlicr, oil tho cdj^o of cafli well; tlu're is oiTJisioiially a swoml pair iifari-r the base ..| tin. fcatlior. Tln> atnoiiiit of siMitting is vory varialilo with imlivithials ; in llii?
. Key to North American birds [microform] : containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland. Birds; Ornithology; Oiseaux; Ornithologie. 792 SySTiJMA TIC SYNOPSIS. â 1' YUUl'ODES. micldlu of tho bnck. The iiiiirkin^ results frnin a isiiiall spot or Htripc near tin; onf cki.), f(!atlicr, oil tho cdj^o of cafli well; tlu're is oiTJisioiially a swoml pair iifari-r the base ..| tin. fcatlior. Tln> atnoiiiit of siMitting is vory varialilo with imlivithials ; in llii? joiiiii; tin- spms miv always larger and more numerous tliau in tiie adults, and usually lengthened into oliliipu' lines, produeing a regular diamond-shaped retieulation. Northern ilemisphere at large; most of the U. S. in winter; breeds in high latitudes. Kggs 2-A, X 62. Family PODICIPEDID-ffi : Grebes. Hill of variable length, mueh longer or shorter than head; eidmen nsinilly about straight, sometimes a little eoucave, or ((iiile eonvex, esj ially at ihi' enil. Coniniissure nearly straight, but more or less corresponiling with the eurve of the eulmen, usually sinuate at base, riuhr outline iif bill in gem-ral eonvex, with slight gonydeal an;;le or none. Sides of bill more or less striate. Nasal fossa- well marked, the nostrils near their termination. Nostrils lineiir and pervious (broader in l'i)dHiiinliiix), ujtper edge straight, not lobed. Frontal extensiciu of featheix eonsiderable, and usually antia- run still further into the nasal fossa. A gi ve aluni.' the symphysis nf the mantlilde extends often nearly to the tip. Kyes far fnrward, with a lnml strip of bare skin running thence to of upper mandible, very narrow in the typieal forms, in Tavlii/ha/ik's and J'odiliiinhiix. Head usually adorned in the breeding season with variously lengthened eolored eri'sis or rutt's : when th<'se :ire wanting the frontal feathers niav be bristly. Nes and C
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
