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Noun: tree swallow  tree swó-low
  1. Bluish-green-and-white North American swallow; nests in tree cavities
    - white-bellied swallow, Iridoprocne bicolor
  2. Of Australia and Polynesia; nests in tree cavities
    - tree martin, Hirundo nigricans

Derived forms: tree swallows

Type of: swallow

Part of: genus Hirundo, Hirundo

Encyclopedia: Tree swallow