. 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 . 5. • Bd. -Cass, in Bd. • Lawr. in Bd. Baiud, Spexceu F., with the coopei-atlon of Jonx Cassinand George N, Lawrexce. Birds of North America; constituting the ninth vol. of the Pacific RailroadExplorations and Surveys. 1858. (.\lso republished separately, with a few additions and a 2cl vol. of 100plates, by the Naturalists* Agency, 1S70.) Ell. Elliot. D. G. Uirds of North America. 2 vols., folio. (Plates .and
. 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 . 5. • Bd. -Cass, in Bd. • Lawr. in Bd. Baiud, Spexceu F., with the coopei-atlon of Jonx Cassinand George N, Lawrexce. Birds of North America; constituting the ninth vol. of the Pacific RailroadExplorations and Surveys. 1858. (.\lso republished separately, with a few additions and a 2cl vol. of 100plates, by the Naturalists* Agency, 1S70.) Ell. Elliot. D. G. Uirds of North America. 2 vols., folio. (Plates .and descriptions of many speciesrecently introduced to our fauna, or before unligured.) Coop. Birds of California. From the MSS. notes of J. G. CoorER. Edited by S. F. Baird. 1 , 1870. I also quote, in particular cases, papers from the proSeedings of different , etc., by variouswriters. The references in these instances are sufficiently explicit. The Roman numerals after the italicized authors name, refer to the rohivie; (he figure,to the pnge; •■ pi. with figures after it, to the number of the phite; •• fig., to the number of Lyre Bird of Australia. (See § 70.) KEY TO THE GENERA TOES 3,-2 IN FRONT, 1 BKHIND PlCOIUES 132 TOES 3,-3 IN FItONT. (II.) TOES 4,-2 IN FRONT, 2 BEHIND. (III.) TOES 4,-3 IN FRONT, 1 BEHIND. (IV.) II. [toes 3,-3 IN FRONT.] Toes incompletely, or not webbed, (a)Toe* completely webbed, (d) (a) Naked leg and foot together about wing. Bill subulate; one biisnl well . HiMANTOPCS 197 —much < the wing, (b) (b) Bill muchs-tiirsus, truncate at tip; tiB. reticubite. Biids over 12 inches long, . . Hematopus 194 — muchbill; plumage speckled Cijaradrius 190 — not speckled; trs. nearly twice = .!t., Podasocys 192 —nutnearly twice = 3t. ^gialitis 191 (d) Nostrils tubular; sides of under mandible not sulcate Diomedea 29G — with a long colored groove, PHtEBETKiA 297 — not tubular (linear, oval, etc.) (
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