The difference between the Black-backed Dwarf-Kingfisher and the Ruddy Kingfisher:
1/ Black-backed Dwarf-Kingfisher: black and blue back, very short tail, white ears
2/ Ruddy Kingfisher: ruddy back
The difference between the Black-backed Dwarf-Kingfisher and the Ruddy Kingfisher:
1/ Black-backed Dwarf-Kingfisher: black and blue back, very short tail, white ears
2/ Ruddy Kingfisher: ruddy back
