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Definition of Tree swift
1. Noun. Birds of southeast Asia and East Indies differing from true swifts in having upright crests and nesting in trees.
Exact synonyms: Crested Swift
Generic synonyms: Apodiform Bird
Group relationships: Family Hemiprocnidae, Hemiprocnidae
Generic synonyms: Apodiform Bird
Group relationships: Family Hemiprocnidae, Hemiprocnidae