Avian Anatomy & Feathers

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Across
  1. 2. Body, tail, and flight feathers
  2. 4. Feathers that never stop growing
  3. 6. Small contour feathers found by the ear openings
  4. 7. Refers to contour feathers of the wing
  5. 9. The stomach that uses chemical breakdown
  6. 10. Feathers that lack barbules/hooklets and are found under contour feathers
  7. 11. Feathers that lack a true shaft/barbules/hooklets that are found next to the skin
  8. 12. Modified contour feathers that aid in sense of touch
  9. 16. Another word for bird
  10. 17. Feathers that have sensitive nerve endings to them and are found on the nape/upper back
  11. 18. The muscular stomach
Down
  1. 1. Use for flight, protection of skin, aid in heat regulation, and use as camouflage are all examples of a feather's what?
  2. 3. Defense, courtship, and recognition are all example of what that feathers aid in?
  3. 5. Refers to contour feathers of the tail
  4. 8. An outgrowth of skin made of protein
  5. 13. When a bird puffs up their feathers, it could be a sign that they are?
  6. 14. Puffing up feathers helps to trap blank next to the bird's body
  7. 15. A dilation of the esophagus that is a storage pouch for food