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Welcome to the BirdForum Opus
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Welcome to the Opus, an interactive, multimedia encyclopaedia that anyone can edit. You can use the Opus to find out about everything to do with birds - from the birds themselves to the places you can find them.

Featured Article: White-flanked Antwren
Photo by Gerald Friesen


9–10 cm (3½-4 in)

  • Dark grey upperparts
  • Black underparts
  • Black wings with lines of white spots
  • White flanks and underwings

Female and immature male

  • Brown upperparts
  • Yellowish-buff underparts
  • Barred rufous wings
  • White flanks and underwings


Males of M. a. albigula and M. a. melaena have black upperparts and underparts, and the female is darker than nominate.
The eastern Brazillian subspecies M. a. luctuosa has much less white on the flanks.

[Read More...]

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