PO Box 4120 Portland, OR, 97208-4120
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The Brazza's martin is 12 cm (4.25 in) long with wings averaging 100.5 mm (4.4 in). This small hirundine has grey-brown upperparts with a somewhat darker brown head and white underparts heavily streaked with blackish-brown from the throat to vent. There is a brownish tint to the breast plumage. The square tail averages 46.8 mm (1.8 in) long and has white edges to the brown undertail coverts. The flight feathers are blackish-brown and the bill and legs are black. The eyes are dark brown and the black bill averages 8.5 mm (0.33 in) long. The sexes are similar, but juvenile birds have more diffuse breast streaking and reddish-brown or buff edges to the feathers of the back and wings.[3][14] This bird has no subspecies.[15] The song consists of a series of short notes increasing in frequency which are followed by a complex buzz and sometimes completed by a number of clicks. The song becomes increasingly loud, although the final clicks are quite soft. The song is similar to that of the banded martin, and does not resemble the Mascarene martin, suggesting unresolved taxonomic problems.[16] The flight is variously described as heavy,[3] or like that of a sand martin.[17] Brazza's martin can be distinguished from most other swallows within its range by the heavy streaking on the underparts.[3] Although the lesser striped swallow also has white underparts with dark streaking, it is larger, has a deeply forked tail and a very different plumage, with dark blue upperparts, a red rump and a chestnut head.[18] Compared to the Mascarene martin, this species is smaller, has a plainer back and finer dashing on the throat and chest,[19] but there is no range overl
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The Brazza's martin is 12 cm (4.25 in) long with wings averaging 100.5 mm (4.4 in). This small hirundine has grey-brown upperparts with a somewhat darker brown head and white underparts heavily streaked with blackish-brown from the throat to vent. There is a brownish tint to the breast plumage. The square tail averages 46.8 mm (1.8 in) long and has white edges to the brown undertail coverts. The flight feathers are blackish-brown and the bill and legs are black. The eyes are dark brown and the black bill averages 8.5 mm (0.33 in) long. The sexes are similar, but juvenile birds have more diffuse breast streaking and reddish-brown or buff edges to the feathers of the back and wings.[3][14] This bird has no subspecies.[15] The song consists of a series of short notes increasing in frequency which are followed by a complex buzz and sometimes completed by a number of clicks. The song becomes increasingly loud, although the final clicks are quite soft. The song is similar to that of the banded martin, and does not resemble the Mascarene martin, suggesting unresolved taxonomic problems.[16] The flight is variously described as heavy,[3] or like that of a sand martin.[17] Brazza's martin can be distinguished from most other swallows within its range by the heavy streaking on the underparts.[3] Although the lesser striped swallow also has white underparts with dark streaking, it is larger, has a deeply forked tail and a very different plumage, with dark blue upperparts, a red rump and a chestnut head.[18] Compared to the Mascarene martin, this species is smaller, has a plainer back and finer dashing on the throat and chest,[19] but there is no range overl
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