tree swallow is a noun meaning "bluish-green-and-white North American swallow; nests in tree cavities". It carries 2 recorded senses.
bluish-green-and-white North American swallow; nests in tree cavities
of Australia and Polynesia; nests in tree cavities
Definitions, synonyms and semantic relations for tree swallow come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.