Ron Canterbury has been studying birds for decades. Now, the professor is sounding the alarm about their possible extinction.

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After walking the grounds of the Morton Arboretum for hours on a December morning, John Leonard and fellow birders were preparing to go to lunch when they encountered a rare sight: a flock of 17 red ...

When a rare ocean-dwelling bird showed up on a quiet Houston lake hundreds of miles from its natural habitat, dozens of birders grabbed binoculars, jumped on boats, and raced to see a red-footed booby ...