PAUL WILLIAMS / SCIENCE PHOTO LIBRARY PAUL WILLIAMS / SCIENCE PHOTO LIBRARY
Hawk hunting budgerigars. Hawk (family Accipitridae) hunting budgerigars (Melopsittacus undulatus) as they flock en masse to find water. These small parakeets are native to Australia, but have been introduced throughout the world as a pet. Photographed in the Northern Territory, Australia, in summer.
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