. 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. uo GENEHAL OILMTIIOLOG Y. nncliyl'isix i>f tlicir nodicn ami prucrHRps, l)ut also, in many cniPR, by ofwificaliniix of the tciiiloiis ipf iniisflcn of tlic bark, ami of tlicsi- wifli flip vcrtchni-, like a Hit (,f (tpiiiils, till tlio nf the tlii'raclc is rnily siii-]m!'(l l)y tliat &q
. 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. uo GENEHAL OILMTIIOLOG Y. nncliyl'isix i>f tlicir nodicn ami prucrHRps, l)ut also, in many cniPR, by ofwificaliniix of the tciiiloiis ipf iniisflcn of tlic bark, ami of tlicsi- wifli flip vcrtchni-, like a Hit (,f (tpiiiils, till tlio nf the tlii'raclc is rnily siii-]m!'(l l)y tliat "f tlic pelvic rcijiim dftlip HjiiiiP. Diirwal vcrlcltrH' also usually tlifftT a piod ileal from most ccrvlcals in liaviiii; slmrttr Imdips, latnally i'oui))rPssp(l, pioduciiiK a ridp-wliich runs aloui; tlieir iiiiddir liur ; in lapkiiiK a vcrttlnai-tprial paiial; iu liavinn on each side two articular laccls, — one on the Imly and the other on the transverse jirocess, for the head and shoulder of ii rih. They are fiinlier distiniiuished, usually. I>y liavinj; larj{p spinous prtK-psses, in thp form of liii;h, lone tliiii. siiiiarisli plates, often or usually anchylosed together. Their traimvorsp processes are also very prominent laterally, thin and hori/ontal, and often anchylosed. More or fewer dorsals may biar larjjp hypapophyses; which, as in thp loon, may Idfnrcuto at their pikIh int<i two llariuif idates. .'<uch prtK-esses continue a Himilar series from tho npck, and arp in relation to till' advanlaueoiis action of the muscles (minx colli autiriiH and Ioiiijnh colli) liy which tho neck is made to strai^'hten out from tho lower curve of its sigmoid flexure. The "Sacrum" of a Blril (figs. .')7, nnd fiO) is commonly cotisidered to hp that liuuo Hidid mass of nninernns iinchylospil vprt»dirM! in the rpgiim of thp p<dvis, covpred in hy. and fiispil morp or h'ss pomidetply with, the principal hones of ihe pelvis, or haunch-liones (iliii). Kut in
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbirds, bookyear1884
