Chain Crosswords Short Math Hard — Set 4

Hard 15×15 Set 4
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Across
  1. 3. A word related to animals
  2. 6. Tropical bird with huge beak
  3. 8. A word related to animals
  4. 9. Tuxedo-wearing flightless bird
  5. 10. Largest living primate
Down
  1. 1. Colorful bird that can talk
  2. 2. Swift hunting bird of prey
  3. 4. Large bovine of the plains
  4. 5. Red crustacean served at dinner
  5. 7. Bird with a large bill pouch