| http://www.w3.org/ns/prov#value | - GenusHirundo (1)SizeLength: 13 cm (2) (3)Weight14 - 19 g (2) (3) Top factsThe tree martin is a small member of the Hirundinidae family, which includes the swallows and martins.The tree martin can be identified by its blue-black upperparts, whitish underparts, white rump and shallowly forked tail.The diet of the tree martin consists mainly of flying insects, which it catches with great agility in t
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