tree swift


: any of several atypical swifts of the genus Hemiprocne of India and the East Indies which are often isolated in a distinct family, which have unusually soft plumage and are mostly crested, and in which the sexes are dissimilar and the young differ markedly from adults

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Cite this Entry

“Tree swift.” Dictionary, Merriam-Webster, Accessed 30 May. 2024.

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