"Another small family, characterized by the extreme length of the slender legs, and the extreme slenderness…
"Botaurus. Bittern. Bill moderately longer than head, shorter than tarsus, which is shorter than middle…
"Fig 66 - Head of a chick, second stage, after five days of incubation, section in profile; x6 diameters.…
"Upper part ashy-gray, with scarcely a shade, and only on the rump, under parts similarly grayish-white,…
"Fulicia. Coot. Bill and frontal plate much as in the Gallinultes. Body depressed; the under plumage…
"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.
"- a, head of a (Polioptila nigriceps) Black-capped Gnat-catcher. b, head of a(Polioptila caerulea)…
"In ornithology, having the beak broad and deeply cleft, as a swallow, swift, or goatsucker" or nightjar.…
"Upper parts, central tail-feathers, and much edging of the wings, clear ashy-blue; whole crown, nape,…
"The post-oral arches of the house martin, at middle of period of incubation, lateral view, X14 diameters.…
"Ammodramus. Seaside Sparrow. Bill remarkably slender and lengthened for this family, with culmen toward…
"Fig 181 - Generic details of Hirundo horreorum(Barn Swallow) Deep lustrous steel-blue; forehead and…
"Chaetura pelasgica. Chimney Swift. Chimney "Swallow". Sooty-brown, with a faint greenish gloss above;…