. The birds of eastern North America known to occur east of the nineteenth meridian .. . ^white, without bars ; thi,<;hs, tawny or bntf, more or less barred; tarsus,tlnckly leathered. American Rough=!egged Hawk. Archihutco higniius No. 281. Four outer primaries, notched; l)asal portion of inner webs of primaries, largelywhite, without bars; thiuhs, tinged with deep rufous, heavily barred ; tarsusthickly feathered. Ferruginous Rough=legged Hawk. Archibntra fcrriajiiicits. See No. 28:1. General plumag«^ entirely sooty brown, or black; foui- outer primaries, notched;prima
. The birds of eastern North America known to occur east of the nineteenth meridian .. . ^white, without bars ; thi,<;hs, tawny or bntf, more or less barred; tarsus,tlnckly leathered. American Rough=!egged Hawk. Archihutco higniius No. 281. Four outer primaries, notched; l)asal portion of inner webs of primaries, largelywhite, without bars; thiuhs, tinged with deep rufous, heavily barred ; tarsusthickly feathered. Ferruginous Rough=legged Hawk. Archibntra fcrriajiiicits. See No. 28:1. General plumag«^ entirely sooty brown, or black; foui- outer primaries, notched;primarifs and tad, with more or less white, or gray : tarsus, thickly feathered. American Rough=legged Hawk (black plumage). Archiltidco l(((/(ijins No. 281. 172 KEY TO THE BIRDS OF EASTERN NORTH Caracara. Four outer primaries, einiiri;-iiiatt. hut not decidedly notched ; :i part of inner webof outer primaries, wliite, sliowiiij:; numerous imperfect bars; tliii^bs, Idaolv, ordark brown: face, l)are. Audubons Caracara. Poli/harus No. 297 Ilirce outer prlminics, notclied : belly and thighs, not white. Swainsons Hawk. Buteo Xo. 277. Tliree outer primaries, notclied: a part of inner wel) of outer jirimaries, white,sliowiug numerous imperfect l): belly and thighs, pure white; liack, dark)>rown. Fish Hawk. Pandion No. 29S. Two outer primaries, notched; ])rimaries, dark slaty blue, showing greenishtinge when held in the light; tail, long and forked; underparts and thighs,white. Swanow=tailed Kite. ElaniiidtS No. 261. FAMILY —ItAWKS, FALCONS, EAGLES, ETC. 173 Section 4. Fourth primary, longest; four or five outerprimaries, emarginate or notched; upper tail coverts,white. Itiilci- surfac-e of tail, whitish at
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1900
