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Drill, sexual difference of colour in the. Dromaeus irroratus. Dromolaea, Saharan species of. Drongo shrike. Drongos, racket-shaped feathers in the tails of. Dryness of climate, supposed influence of, on the colour of the skin. Dryopithecus. Duck, harlequin, age of mature plumage in the; breeding in immature plumage. Duck, long-tailed, preference of male, for certain females.
Belt, Mr., on the nakedness of tropical mankind; on a spider-monkey and eagle; habits of ants; Lampridae distasteful to mammals; mimicry of Leptalides; colours of Nicaraguan frogs; display of humming-birds; on the toucans; protective colouring of skunk. Benevolence, manifested by birds. Bennett, A.W., attachment of mated birds; on the habits of Dromaeus irroratus.
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