noun
cere
Ornithological term for the bare, often waxy skin at the base of a bird's upper beak. Used in scientific and bird-watching contexts.
インコの蝋膜の色で性別がわかることがある。
The color of a parakeet's cere can sometimes indicate its sex.
この鳥の蝋膜は黄色い。
This bird's cere is yellow.