black-rumped waxbill
Specifically refers to the species Estrilda troglodytes, a small estrildid finch.
The black-rumped waxbill is a small bird native to Africa.
estrildid finch; waxbill
General term for any bird of the family Estrildidae, including waxbills, munias, and related species.
Birds of the estrildid family are kept as pets around the world.
The name likely derives from 楓 (kaede, 'maple') + 鳥 (chō, 'bird'), possibly referring to the bird's coloration or habitat, but the exact origin is uncertain.