Here are the approximate sizes of some common hawk species:
- American Kestrel: Wingspan of 20-24 inches, length of 9-12 inches, weight of 3-5 ounces
- Red-tailed Hawk: Wingspan of 42-54 inches, length of 19-25 inches, weight of 2-4 pounds
- Cooper's Hawk: Wingspan of 24-35 inches, length of 14-20 inches, weight of 1-2 pounds
- Northern Goshawk: Wingspan of 36-44 inches, length of 22-26 inches, weight of 2-3 pounds
- Bald Eagle: Wingspan of 6-8 feet, length of 30-37 inches, weight of 8-15 pounds