noun
Refers to the digestive organ in birds and some other animals. In everyday contexts, 砂嚢 (さのう) is more common for 'gizzard', while 餌袋 can refer to the crop or gizzard depending on the animal.
鳥の餌袋には、食べた種が一時的に蓄えられる。
In a bird's crop, eaten seeds are temporarily stored.
ニワトリの餌袋を解剖して観察した。
We dissected and observed the chicken's gizzard.