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tree swallow, tree martin, Hirundo nigricans | of Australia and Polynesia; of Australia and Polynesia; nests in tree cavities ❲Hirundo nigricans❳ | ||
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tree swallow, white-bellied swallow, Iridoprocne bicolor | bluish-green-and-white North American swallow; bluish-green-and-white North American swallow; nests in tree cavities ❲Iridoprocne bicolor❳ |