You know it's springtime in Maine when the birds wake you up before your alarm clock does. Right now is peak season for the spring bird migration. That means bird watchers -- both amateurs and experts -- are out with their binoculars in woods and fields all over Maine. Jennifer Rooks headed out to Wolfe's Neck Woods State Park with ornithologist Jeff Wells.
When Jeff Wells heads into the woods, he hears things most of us don't.
"That super-high pitch sound, 'zzzz,' that's a blackburnian warbler," Wells says.
Not background noise. But discrete, individual voices.