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Great Horned Owl
Great Horned Owl
Great Horned Owls are the only owls that have confirmed nesting on John Heinz National Wildlife Refuge at Tinicum. They are opportunistic nesters, usually using abandoned nests from other birds, like hawks, crows, and herons, but sometimes nesting in tree cavities or on the ground. After a pair has laid eggs in the wintertime, they will aggressively defend their nest from predators with loud calls, pecking, and dive bombing!
Credit: Bill Moses/USFWS. Original public domain image from Flickr
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