. 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 . , pule 120 VIREONID/E, VIREOS. GEN. 53. below ; feet leaden-blue ; eyes red ; no dusky maxillary streaks ; no spnri-ons quill. Large ; 5| - 6^ ; wing 3^-3^ ; tail 2^-2J ; bill about § ; tarsus North America; in most places the most abundant species of thegenus, in woodland ; a voluble, tireless songster. Wils., ii, 53, pi. 12, f. 3 ;NuTT.,i, 312 ; Aud., iv, 155, pi. 243 : Bd., 331, and Eev. 333. ol
. 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 . , pule 120 VIREONID/E, VIREOS. GEN. 53. below ; feet leaden-blue ; eyes red ; no dusky maxillary streaks ; no spnri-ons quill. Large ; 5| - 6^ ; wing 3^-3^ ; tail 2^-2J ; bill about § ; tarsus North America; in most places the most abundant species of thegenus, in woodland ; a voluble, tireless songster. Wils., ii, 53, pi. 12, f. 3 ;NuTT.,i, 312 ; Aud., iv, 155, pi. 243 : Bd., 331, and Eev. 333. Vireo. W/tip-foin-kcU;/. Ver^similar to the last; distin-guished by a narrow dusky maxillary line, or line of spots, on each side ofthe chin; bill longer, f-|; proportions of quills slightly different (see thefigs.). Cuba, Bahamas, and casually in Florida. V. lonr/irostris, Nutt.,i, 2d ed., 359. V. altiJoqmis, Gambel, Proc. Acad. Phila., 1848, 127;Cass., ibid., 1851, 152, and 111. pp. 8, 221, pi. 37 ; Bd., 354. V. harhaiula,Bd., Rev. 331 altiloquus var. Fig. 00. Black-wliiskei-ed Vireo. Vireo flavoviriilis. Obs. Another species or variety of this long-billed, 0-primaried group, V. fla-voviridis (Cass., Proc. Acad. Phila. 1851, 152: Bd., 332 and Rev. 33G), occursin Mexico and may be expected over our border, though no specimens appear tohave been taken within our limits ; it has been admitted into late sjstematic closely resembles olivaceus, but the under parts are yellow, brigliter perhaps,at least on the axillars and crissum, than olivaceus ever becomes, even in the fall. Brolherhj-love Vireo. Above dull olive-green, brightening on the rump, fading insensibly into ashy on the crown,which is not bordered with blackish; a dullwhite superciliary line ; beloAv, palest possibleyellowish, wdiitening on throat and bell}^slightly olive-shaded on sides; sometimes aslight creamy or buffy shade throughout theunder parts ; no obviou
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