Across
- 2. Feather tracts
- 4. Most abundant feather on the bird's body
- 5. Hollow shaft provides support for the barbs
- 6. Material that makes up feathers, the same animals
- 8. Process in which birds replace old or damaged feathers
- 10. Flight feathers of the wing
Down
- 1. Flight feathers of the tail
- 3. The first fossil feather was found during this time period
- 7. Feathers on the bird are collectively referred to as
- 8. Pigments produce black to brown pigments in the body
- 9. Pigments produce red to orange pigments in the body