Aves Crossword
This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 4 to 15 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
a small sac to hold air in the lungs
Another name for bird
small feathers that makeup the outline of a adult bird
expanded pouch near the throat
warm blooded animals
Wishbone of a bird
Thick hard wall in a bird's stomach to break down food.
when the bird sits on their eggs to keep them warm and so they can hatch
Is the protein of hair, feathers, hoofs, claws, horns, etc.
replacement of new coverage
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