. 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. Birds; Ornithology; Oiseaux; Ornithologie. I I 30() TACIIYPETID^, FltlOATKS. riIAETIIOXTIl>-E, TUOl'IC UIUDS.—OEN. 277. (fiainiicoH) ; Fort Thoni, New Mexico (Ileiiri/). Nutt., ii, flO? ; Avo., vi, 44;5, pi. 420; Lawk, in J5o., 883; P. mdanoijaMcr WiLS., ix, 71), 82, pi. 74, f. 1, 2 ANIIIXGA. Family TACHYPETIDiE. Frigates. 15111 longer than the lieiul, stout, straight, wider than liiyli at the
. 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. Birds; Ornithology; Oiseaux; Ornithologie. I I 30() TACIIYPETID^, FltlOATKS. riIAETIIOXTIl>-E, TUOl'IC UIUDS.—OEN. 277. (fiainiicoH) ; Fort Thoni, New Mexico (Ileiiri/). Nutt., ii, flO? ; Avo., vi, 44;5, pi. 420; Lawk, in J5o., 883; P. mdanoijaMcr WiLS., ix, 71), 82, pi. 74, f. 1, 2 ANIIIXGA. Family TACHYPETIDiE. Frigates. 15111 longer than the lieiul, stout, straight, wider than liiyli at the l)ase, thence gradually compressed to the strongly hooki'd extremity. ]S' very small, linear, almost entirely closed, in a long narrow groove, (inlar sac small, but ciipable of considerable distension. Wings exceedingly long and pointed, of about 31 reniiges, of which the 10 primaries .ire very powerful, with stout (juadrangular shafts; npfjer and middle portion of the wings greatly lengthened. Tail very long, deei)ly forked, of 12 strong feathers. Feet exceedingly small, the tarsus, in particular, extraor- dinarily short (§ 7;'), p. '1')), feathered; middle claw pectinate. IJullc of bod^' slight compared with the great length of the wings and tail. Here only in this order is found the on uncinntitin, a peculiar skull-lwne occurring in nearly all the petrels, the turacous (^Mnsapliayidn-, p. 178) and many cuckoos. The frigates are maritime and pelagic birds of most warm parts of the glol)e. Their general contour is nuiipie among watcr-tiirds, in the iunueuse length and sweep of the wings, length of the forked tail and extreme smalluess of the Icet. In command of wing they are unsurpassed, and but few birds approach them in this respect. They arc more nearlj' independent of land than any other birds excei)ting albatrosses and petrels, being often seen hundreds of miles at sea, and delight to at an astonishing elevation. They cannot dive, and scarcely swim or wa
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
