ClipArt ETC
"Casuarius (Cassowary). Feather, showing after-shaft and disconnected barbs." -Parker, 1900

Cassowary Feather

"Casuarius (Cassowary). Feather, showing after-shaft and disconnected barbs." -Parker, 1900

"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.

White-fronted Dove Details

"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.

"Parts of a feather. I., Four barbs (B.) bearing anterior barbules (A.BB.) and posterior barbules (P.BB.); II., six barbs (B.) in section, showing interlocking of barbules; III., anterior barbule with barbicels (H.)." -Thomson, 1916

Feather Parts

"Parts of a feather. I., Four barbs (B.) bearing anterior barbules (A.BB.) and posterior barbules (P.BB.);…

"Types of feathers. D., Down. 2, Developing feather in sheath (sh.). 3, Covert of heron showing aftershaft (A.S.). 4, Secondary feather of pigeon--C., calamus; A.S., aftershaft; R., rachis; V., vane. 5, Portion of quill showing inferior umbilicus (I.u.), superior umbilicus (S.u.), pith (P.); F., filoplume." -Thomson, 1916

Feather Types

"Types of feathers. D., Down. 2, Developing feather in sheath (sh.). 3, Covert of heron showing aftershaft…

"A., Filoplume. B., very young feather within its sheath (sh.); c., the core of dermis; b., the barbs. C., the same, external view." -Thomson, 1916

Feathers

"A., Filoplume. B., very young feather within its sheath (sh.); c., the core of dermis; b., the barbs.…

"- a, head of a (Polioptila nigriceps) Black-capped Gnat-catcher. b, head of a(Polioptila caerulea) Blue-gray Gnat-catcher. c, tail of (Polioptila nigriceps) Black-capped Gnat-catcher. d, tail of (Polioptila plumbea) Plumbeous Gnat-catcher" Elliot Coues, 1884

Black-capped Gnat-catcher

"- a, head of a (Polioptila nigriceps) Black-capped Gnat-catcher. b, head of a(Polioptila caerulea)…

"Chaetura pelasgica. Chimney Swift. Chimney "Swallow". Sooty-brown, with a faint greenish gloss above; below paler, becoming gray on the throat; wings black; a velvety black space about eyes." Elliot Coues, 1884

Chimney Swift Head and Feather

"Chaetura pelasgica. Chimney Swift. Chimney "Swallow". Sooty-brown, with a faint greenish gloss above;…

"Hirundo horreorum. Barn Swallow. Tail deeply fornicate, nearly or about as long as the wings; lateral feather linear-attenuat, about twice as long as the middle feather." Elliot Coues, 1884

Barn Swallow Tail

"Hirundo horreorum. Barn Swallow. Tail deeply fornicate, nearly or about as long as the wings; lateral…

"Sterna forsteri. Forster's Tern. Tail 5.00 - 8.00, forked 2.50-5.00." Elliot Coues, 1884

Tail of Forster's Tern

"Sterna forsteri. Forster's Tern. Tail 5.00 - 8.00, forked 2.50-5.00." Elliot Coues, 1884