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Barn Swallow: Medium swallow with glittering blue-black upperparts, red-brown forehead, chin and throat. Dark blue-black breast band, belly is white to orange. Tail is deeply forked with long outer streamers. Black legs and feet. It is the most abundant and widely distributed swallow in the world.
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Black Swift: Large, bulky swift, black overall. Wrist (wing angle) is very close to body. Long, slightly forked tail, often fanned out. It is the largest North American swift. Spends most of its time thousands of feet in the air. It flies on stiff, shallow wingbeats. Soars on thermals and updrafts.
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Bank Swallow: Small swallow with brown upperparts, and a brown breast band seperating white underparts from white throat and chin. Tail is notched. Brown legs, feet. The smallest North American swallow. Swift, erratic flight, alternating several shallow, rapid wing beats with short to long glides.
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Bahama Swallow: Medium-sized swallow with dark blue-green upperparts and cap extending below eye, and steel-blue wings, white chin, throat and underparts, and deeply forked tail. The bill, legs and feet are black. Swift, graceful flight, alternating rapid wing beats with long glides.
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Brown-chested Martin: Medium-sized swallow with brown upperparts. The underparts are white with a brown chest band and brown on the flanks. Black bill is short, wide, and slightly decurved and forked tail is short to medium in length. Swooping, erratic flight.
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Barn Swallow (Palau): Medium-sized swallow with glittering blue-black upperparts and red-brown forehead. Breast is red-brown with dark band and belly is white to orange. Tail is short and forked. Female and juvenile are duller and have shorter tail streamers.
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