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Migratory Bird Concentration Site

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Migratory Bird Concentration Sites are important resting and feeding areas for birds as they fly between their breeding and wintering grounds. These areas also can be locations where large numbers of migrating birds often become concentrated due to prevailing winds and or water barriers. Sites are used by many different species, both rare and non-rare.


Migratory Bird Concentration Site  [Photo #9687]

Undeveloped sandspits and lagoons, characteristic features of river mouths along the Great Lakes shores, provide critical habitat for many migratory birds.

Photo by  staff, WDNR.

Migratory Bird Concentration Site  [Photo #15763]

Extremely dynamic, unvegetated Great Lakes Beach bordering W side of Lake Superior sandspit is heavily used by migratory birds, including waterfowl, shorebirds, raptors, and passerines.

Photo by Eric Epstein, WDNR.

Migratory Bird Concentration Site  [Photo #13426]

Rice Lake and Peaslee Bottoms along the Lower St. Croix River. The St. Croix River corridor supports numerous rare species and receives heavy use by migratory birds.

Photo © Mike Mossman.

Last revised: Thursday, June 17, 2021