Anatomy
Crop
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<birdfyi-glossary slug="crop"></birdfyi-glossary>定義
A muscular pouch in the esophagus used to temporarily store and soften food before digestion.
詳細な説明
The crop enables birds to gather food rapidly and process it later in safety — a key advantage for species foraging in exposed areas. Doves and pigeons produce protein-rich 'crop milk' from sloughed crop epithelium to feed nestlings. In raptors, the crop stores recently swallowed prey whole, which is later compressed into a pellet and regurgitated before the next meal.