vireo

But birds that are more sensitive to temperatures — and those whose prey can’t stand the heat — might suffer under persistent warming, such as yellow warblers and Bell’s vireos.

Once teetering on extinction, the least Bell’s vireo is making a comeback in areas along the Los Angeles River, including a bustling park in northeast L.A.

Once teetering on extinction, the least Bell’s vireo is making a comeback in areas along the Los Angeles River, including a bustling park in northeast L.A.

The arrival of warblers, vireos and other colorful birds last week has excited Britain’s twitching community — enthusiastic bird-watchers who will travel long distances to view new or unusual species.

The pair once spent a week combing brushy hills and mesas in the Grapevine Mountains on the eastern edges of Death Valley in hopes of spotting an elusive and rarely seen gray vireo.