ornithology

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Across
  1. 2. what kind of bones aid in flight?
  2. 4. wing
  3. 6. winged finger
  4. 8. bird
  5. 10. study of birds
Down
  1. 1. what branch of science is ornithology?
  2. 3. avis
  3. 5. winged
  4. 7. who studied evolution in birds?
  5. 9. science of, study of