Young birds are browner above and have very pale yellow underparts.

The female is dark olive green above, and has pale yellow underparts which become brighter on the belly.

A faint white line separates the breast from the orange yellow underparts.

The majority of species have olive or grey upperparts and yellow underparts.

It has a square crest, a grey hood and yellow underparts.

This speculative proposal is based upon the shared yellow underparts and their living in the same general region.

They have yellow underparts and black head markings in at least the adult male plumage.

It has olive upperparts and yellow underparts, becoming white on the belly.

Adult males are well marked with yellow underparts, chestnut back and a black head.

In all species the male at least has a black or brown back and extensively red or yellow underparts.