Tangara à croupion jaune vs Haplospize ardoisé

The Sulphur-rumped Tanager and Slaty Finch are distinct in both structure and coloration. The tanager is notable for its bright sulphur-yellow rump, while the finch has a more uniform slaty coloration. These differences make them distinguishable in the field.

Look for the sulphur-yellow rump on the Sulphur-rumped Tanager, a key feature absent in the Slaty Finch. Note the overall slaty-gray coloration of the Slaty Finch, which lacks the bright rump of the tanager.

The Sulphur-rumped Tanager is generally larger and more robust than the smaller, more compact Slaty Finch.

The Sulphur-rumped Tanager features a distinctive sulphur-yellow rump, contrasting with its otherwise darker plumage. In contrast, the Slaty Finch has a more uniform slaty-gray coloration throughout.