black-backed dwarf-kingfisher vs guarda-rios-de-colar

The Black-backed Dwarf-Kingfisher and the Collared Kingfisher can be distinguished primarily by their size and plumage. The Black-backed Dwarf-Kingfisher is smaller and features a distinctive black back, while the Collared Kingfisher is larger with a prominent white collar and blue-green upperparts.

Look for the black back and smaller size of the Black-backed Dwarf-Kingfisher. In contrast, the white collar and larger size are key features of the Collared Kingfisher.

The Black-backed Dwarf-Kingfisher is notably smaller than the Collared Kingfisher.

The Black-backed Dwarf-Kingfisher has a black back and bright rufous underparts, whereas the Collared Kingfisher displays a white collar, blue-green upperparts, and a white belly.