. The birds of eastern North America known to occur east of the nineteenth meridian .. . Bill, hooked at tip, and less than twelve inches long; bare skin at base of bill and cTiiu;lores, bare; toes, four, all connected by webs. Family PHALACROCORACID/E. Cormorants. See page 54. r—— .^TXin Bill, hooked at tip; lores, feathered; upper plumage, entirelyblack; toes, four, all connected by webs; tail, forked; wings, verylong. Family FREQATID/E. Man=of=war Birds, Frigate Birds. See page 58. // KEY TO FAMILIES. WATER BIRDS. 17 GROUP 4. Toes, four; toes, not full webbed; small webs betweentoes at base
. The birds of eastern North America known to occur east of the nineteenth meridian .. . Bill, hooked at tip, and less than twelve inches long; bare skin at base of bill and cTiiu;lores, bare; toes, four, all connected by webs. Family PHALACROCORACID/E. Cormorants. See page 54. r—— .^TXin Bill, hooked at tip; lores, feathered; upper plumage, entirelyblack; toes, four, all connected by webs; tail, forked; wings, verylong. Family FREQATID/E. Man=of=war Birds, Frigate Birds. See page 58. // KEY TO FAMILIES. WATER BIRDS. 17 GROUP 4. Toes, four; toes, not full webbed; small webs betweentoes at base, or toes entirely without webs; hind toe,sometimes small. Section I. Hind toe, raised above level of front toes. -«&-. Avocet. Avocet. Tarsus, over iuches long: bill, curved upward or straiiiht. Family RECURVIROSTRID/E. Avocets. Sec page 106.
Size: 1904px × 1312px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectbirdsnorthamerica
