. Key to North American birds; 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. Fig. 223. Crested Auk; adult ia summer. Fig. 224. Crested Auk; immature. Fig. 223. In winter, bill dark, without the horny plate : Uria dubia Pall. ; Slmorhynchus diibius Coues, I. c. 40. Younger birds with a white spot under the eye, base of lower mandible feathered, gape straighter, and no horny plate at the angle. Aha tetmcula Pall. ; Phaler
. Key to North American birds; 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. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. Fig. 223. Crested Auk; adult ia summer. Fig. 224. Crested Auk; immature. Fig. 223. In winter, bill dark, without the horny plate : Uria dubia Pall. ; Slmorhynchus diibius Coues, I. c. 40. Younger birds with a white spot under the eye, base of lower mandible feathered, gape straighter, and no horny plate at the angle. Aha tetmcula Pall. ; Phaleris tetracida Cass, in Bd., 907 ; Simorhi/nchus tetraculus Coues, I. c. 43 • Elliot, pi. 67. Fig. 224. See Brandt, I. c. 224. All the foregoing stages show the crest, but it is wanting in very young birds. Length about 9 ; wing 5J ; tail IJ ; tarsus under 1; bill J. N. Pacitic; not observed in U. S. cristatellus. Whiskered Auk. Similar; smaller; two series (postocular and maxil- lary) of filamentous white feathers on each side of head; bill smaller, never irregular. Very young: blackish-plumbeous, paler below, no crest, bill dark (^8. cassini Coues, I. c. 45; Bd., Tr. Chicago Alca ^yygmma Gm. ?). N. Pacific. Phaleris 908; 8iinorhynchus camtschaticus Coues, I. c. Fig. 22!). Whiskered Auk: adult. PiG. 22G. The same, youu, Acad, i, 324, pi. 31, f. 2 camtschatica Cass, in Bd., 41; Uria mystacea Pall ; Mormon sujperciliosum Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coues, Elliott, 1842-1899. Salem [Mass. ] Naturalists' Agency; New York, Dodd and Mead; [etc. , etc. ,]
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
