Digital Extra: Birding

When the birds come singing, the enthusiasts come calling CHARLESTOWN -- We stalked the wild warblers, not to harm them, just to see them as they flit through Rhode Island on their annual spring migration. Mid-May is the peak of warbler season here, and though the season got off to a slow start, that all changed yesterday. Photo slideshow: Photos of what's out there at Burlingame State Park

Bird-watching marathon to feather Audubon's nest
SMITHFIELD -- Birds won't be the only things flocking to the marshes, forests and beaches of Rhode Island this weekend. They will be joined by a posse of bird watchers drawn by the Audubon Society of Rhode Island's annual Birdathon.

URI study shows global warming having a chilling effect on songbirds
With the onset of spring, songbirds are returning to feeders and nests as scientists are taking a close look at whether the birds are being affected by global warming.

www.abcbirds.org/ climatechange/ -- Browse a joint report produced by American Bird Conservancy and National Wildlife Federation on how global warming may affect songbirds around the country, including findings by state.

www.massbird.org -- Local resource, with many links for more information.

www.birds.cornell.edu -- Excellent all-around bird information, including songs, videos and ecology from the Cornell University Lab of Ornithology.

www.enature.com/ audio/audio_home.asp -- Many audio clips of bird songs.

www.birdwatchersdigest.com/ audio_index.html -- Even more bird songs ...

Local birding organizations

Audubon Society of Rhode Island -- Includes information on programs, its refuges around the state and more.

Norman Bird Sanctuary -- A 450-acre wildlife refuge in Middletown, R.I.

Massachusetts Audubon Society