Cory's Shearwater - Calonetris diomedea
Identification Tips:
- Length: 19 inches Wingspan: 44 inches
- Sexes similar
- Pelagic bird only coming ashore to breed
- Large shearwater
- Yellow bill with tube on top
- White underparts
- Brownish upperparts
- Slow wingbeats
Similar species:
Greater Shearwater has a faster wingbeat and a darker bill, belly and cap.
Audubon's Shearwater is much smaller with a dark bill. Immature gulls are
superficially similar but can be separated at great distances by their
different flight styles. Shearwaters fly closer to the surface of the water,
often disappearing behind swells, alternating flaps with long glides on
downcurved wings.