Across
- 4. Absorption of nutrients from food
- 7. The size of this is an indication of the amount of testosterone in the body
- 8. The stomach
- 9. Mechanically grinds up food
- 10. Located on feet and legs
Down
- 1. Red growth underneath the beak
- 2. Birds have one of these instead of lips and teeth
- 3. Fermentation of any left over food
- 5. Flexible tube that connects the mouth to the crop
- 6. Nostrils located on the beak
- 8. Outer covering of a bird's body
- 11. Moisten and temporary storage of food