A relatively shy and infrequently noticed bird in Maine, the northern shrike often perches atop a tree awaiting a food opportunity. Unlike most songbirds, this one preys on small birds and rodents.
This one, uncharacteristically, was in downtown Brewer near City Hall. Their primary habitats in summer are open spaces in woods or swampy areas with a lot of brush, mostly in Canada. They visit Maine in winter and prefer open fields for hunting their prey.
Bull, John and John Farrand, Jr. The Audubon Society Field Guide to North American Birds: Eastern Region. New York: Knopf. 1977 and various years.