অর্থ : Bluish-green-and-white North American swallow. Nests in tree cavities.
সমার্থক : iridoprocne bicolor, white-bellied swallow
অর্থ : Of Australia and Polynesia. Nests in tree cavities.
সমার্থক : hirundo nigricans, tree martin
Tree swallow meaning in Bengali (Bangla).