Description
This bird is 15 cm long, larger than Reed Bunting, and long-tailed. The breeding male has bright yellow underparts, chestnut upperparts and a black hood. The female is a washed-out version of the male, with paler underparts, a grey-brown back and a greyish head. The juvenile is similar but the vent is yellow, and both can be difficult to separate from the corresponding plumages of the closely related Red-headed Bunting although the Black-headed tends to have the cheeks darker than the throat. First year males have a grey crown and the back has patches of chestnut and grey. First year females can be difficult to separate from female Red-headed Buntings although having more streaking on the crown than on the lower back. The vent is yellow.
The Black-headed and Red-headed Bunting represent sister species which forms a clade along with the Crested Bunting.
Read more about this topic: Black-headed Bunting
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