A threatened burrowing owl ducks into its burrow and makes rattling, hissing sounds like a rattlesnake.

Owl Week · day 4 of 7
A threatened burrowing owl ducks into its burrow and makes rattling, hissing sounds like a rattlesnake.
Burrowing owls rarely dig their own homes. They take over tunnels left by badgers, foxes, ground squirrels or prairie dogs.
Burrowing owls line their nests with mammal dung, usually cattle. Researchers think it controls the climate and attracts insects.
They watch from a perch, then dive on prey or flutter up to grab insects in midair.
A clutch can hold four to 12 eggs, usually 9. The male brings food while the female incubates for 3-4 weeks.
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