a bluish-green and white swallow, Iridoprocne bicolor, of North America, that nests in tree cavities.
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How to use tree swallow in a sentence
The tree swallow wore a greenish-black cloak and a spotless white vest.Citizen Bird | Mabel Osgood Wright and Elliott Coues
My first thought was of the Orange-tree swallow-tail, née Papilio cresphontes.Edge of the Jungle | William Beebe
A hardy Warbler which, like the tree swallow, can substitute bayberries for insects.What Bird is That? | Frank M. Chapman
The peasants call it tree-swallow, but its name is something else.In Midsummer Days and Other Tales | August Strindberg
Upper parts dusty brown, darker on the wings, and tail forked a little, like the tree swallow's.Citizen Bird | Mabel Osgood Wright and Elliott Coues