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Owl Pellets What did the owl eat?
Owl Pellets • Owls are birds of prey. They hunt for their food with sharp, pointed talons for grasping prey and a hooked beak for tearing meat. They swallow a lot of bones, fur and feathers when eating their prey. Several hours after feeding they regurgitate the undigested material in a compact pellet. Because the bones in the pellet are relatively undamaged, it is possible to use the contents of the pellet to find out what the owl has eaten.
Ask: What did the owl eat? Collect observational data: Place your pellet on a sheet of newspaper. Pull apart the pellet with a toothpicks or your hands. Separate the bones from fur and feathers. Sort the bones (skulls, jaws, ribs, arms and legs) Decide how to display them. Two possibilities are … • Assemble the bones from a single animal, recreating the original skeleton. • Make a display of all of the bones you found, organizing them in an interesting way. Mount your bones on heavy paper with glue. What did the owl eat?
Extension Activities • Weigh the pellets before you begin dissection and weigh the weigh of the bones collected. • Identify the animals consumed by the skull and bones collected. • Graph the class results of animals consumed. • Construct a food web that ends with the owl. Begin with plants and end with at least one of the animals found in the owl pellet. • Bring in books and videos about owls and other birds of prey.