The male Sudan Golden Sparrow has bright yellow head, underparts; two white wing-bars. birds! Members of the passerellidae are small, plump birds with short, finch-like bills adapted to cracking open seeds. Short, bounding flights, alternates rapid wing beats with wings pulled to sides. //. The Evening Grosbeak is 18.5 cm long. During colder months, this bird is migratory. Yellow crown is bordered by a wide black cap; cheek and collar are black. Wings are brown with two white bars. Golden-crowned Sparrow. Head is black and eyes are red. Female has pale yellow underparts fading to whitish on underparts. "'>");