Using measuring tools like a ruler or tape measure, measure your wingspan! How do you compare to the different native Texas birds listed below? Can you find something in nature (a stick, a branch, a leaf) that’s about the same length as your wingspan? What is your favorite bird's wingspan? Why might a bird need a big wingspan? Why might it need a small one?
Science Seed:Wingspan is the distance from fingertip to fingertip with your arms stretched out—same for birds! To find yours, stretch your arms in a T and measure across. Then compare: Whooping crane (7.5 ft), bald eagle (7 ft), great blue heron (6.5 ft), turkey vulture (6 ft), red-tailed hawk (4.5 ft), and the wandering albatross—the biggest at 12 ft! Big wingspans help birds glide long distances and save energy. Shorter wingspans help forest birds turn fast and catch food between trees.
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Step one
Gather a ruler or tape measure to measure your wingspan.
Step two
Stand with your arms extended out to the sides in the shape of a “T”. Make sure your fingers are fully extended.
Step three
Using the ruler or tape measure, measure the distance from the tip of one finger, across your body, to the tip of the other finger. This is your wingspan!
Step four
Research and compare your wingspan to the wingspans of different native Texas birds: Whooping Crane: 7.5 ft (2.3 m) Bald Eagle: 7 ft (2.1 m) Great Blue Heron: 6.5 ft (2 m) Turkey Vulture: 6 ft (1.8 m) Red-tailed Hawk: 4.5 ft (1.4 m) Wandering Albatross: up to 12 ft (3.6 m)
Step five
Go outside and find a natural object (like a stick, branch, or leaf) that’s about the same length as your wingspan.
Step six
Think about why birds might need large wingspans. What about birds with smaller wingspans? Consider how these wings help them survive in their habitats.
Step seven
Pick your favorite bird and research its wingspan. Does it have a large or small wingspan? Why might this be helpful for its lifestyle? How does your wingspan compare to your favorite bird’s wingspan? Is it larger or smaller?
Step eight
After completing your wingspan activity and reflecting on your findings, share your results and earn your badge for exploring the science behind bird adaptations!
Step nine
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