...It is a small, cup-shapedstructure, suspended hammock-wise between two slender uprightbranches, and to which it is securely attached by fine hairs and webs... 
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...The plumage is intense black, with the inner webs of the remiges attheir base white, but the wing-band, which is over an inch in breadth,shows only when the bird flies...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...The lichens firmly held together with webs, and smoothlydisposed with the tops outside, give to the nest the colour of the barkit is built on...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...In order that thisinformation may be available, the young ducks asthey are hatched can be marked by toe punchingthem on the webs of their feet in the same mannerthat baby chicks are toe punched...
Harry M. Lamon 「Ducks and Geese」
...Large birds, two feet or more in length, varying widely in appearanceand habits; in external structure agreeing only in having all fourtoes joined by webs...
Frank M. Chapman 「Color Key to North American Birds」
...Browner; tail grayish brown; whiteon inner webs, with numerous blackish bars...
Frank M. Chapman 「Color Key to North American Birds」
...Inner webs of all but middletail-feathers rust-brown, outer pair dusky at tip ofinner web...
Frank M. Chapman 「Color Key to North American Birds」
...A perfect feather consists of the shaft, a central stem, which istubular at the base, where it is inserted into the skin, and thebarbs, or fibres, which form the webs on each side of the shaft...
Robert Jennings 「Sheep, Swine, and Poultry」
...The most strikingcharacter of the swimming bird is derived from the structure of thefeet, which are always palmate—that is, furnished with webs betweenthe toes...
Robert Jennings 「Sheep, Swine, and Poultry」
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