Birds

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Across
  1. 2. The fastest bird on land is the ____
  2. 3. Birds lay ____
  3. 5. Birds have these for warmth and flight
  4. 7. The fastest bird through the air is a type of ____
  5. 8. Birds use these to fly
  6. 10. Unlike reptiles which are ectotherms, birds are...
Down
  1. 1. These are a distant relative of birds
  2. 4. Bird wings provide the force of ____
  3. 6. Birds of prey such as eagles are known to have sharp _____
  4. 9. Ostriches can grow to a maximum height of ____ feet tall