...grayish black except the tips ofthe secondaries which are white... 
Chester A. Reed 「The Bird Book」
...In summer the plumageis black above; the throat and upper breastare sooty brown, and the under parts are white,as are also the tips of the secondaries and edgesof the scapulars...
Chester A. Reed 「The Bird Book」
...Mantle slate colored; primaries black,both these and the secondaries being broadlytipped with white...
Chester A. Reed 「The Bird Book」
...erythropterus is squarerand contains only ten feathers instead of twelve: the wing is 4⁄10 ofan inch shorter; and the secondaries relative to the primaries are alsoshorter...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Rosy red, lighter on back; primariesand secondaries black...
Frank M. Chapman 「Color Key to North American Birds」
...Head, ends of secondaries, and underpartsbluish gray; back bluish slate; tail black without bars...
Frank M. Chapman 「Color Key to North American Birds」
...Gray; wings and middle tail-feathersblack, tips of secondaries and outer tail-feathers white...
Frank M. Chapman 「Color Key to North American Birds」
...The spots on the inner secondaries, in the first plumage, appear to be much largerin the case of A...
James Chapin 「Descriptions of Three New Birds from the Belgian Congo」
...The secondaries are folded over the primaries; and the primaries shut up close, with their outer edges parallel, or nearly so...
John Ruskin 「Love's Meinie」
...Abdominal groove: the concave lobe of the inner marginof secondaries enveloping the abdomen beneath, in somebutterflies...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Jugum: in certain Lepidoptera and Trichoptera, a lobeor process at the base of primaries, overlapping secondaries andholding the two together in flight...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Lobulus: the partly separated portion of the wings ofsome flies and of secondaries in some Hymenoptera: also used as =alula; q...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Praecostal spur: a false vein in costal angle at baseof secondaries...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Second lateral thoracic suture: in Odonata, extendsfront base of secondaries to the rear of the third coxa...
John. B. Smith 「Explanation of Terms Used in Entomology」
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