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- American bittern is endangeredThe American bittern is endangered because of its dependency on specialized marshes; wetlands have declined by more than 50 percent in Pennsylvania over the past two centuries. Marshes remain at risk from sedimentation, eutrophication, chemical pollution and, to a lesser degree, encroachment.www.pa.gov/agencies/pgc/wildlife/discover-pa-wildlife/herons/american-bittern.h…
American Bittern - CT.gov
Status: State endangered. Identification: Adult American bitterns are large, somewhat stocky birds with yellow eyes, rich brown upperparts, and a white throat that is offset by black streaks.
American bittern - Conserve Wildlife Foundation of NJ
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American bittern - Wikipedia
American Bittern | Game Commission | Commonwealth of …
American Bittern - NYSDEC - New York State Department of …
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American Bittern | Audubon Field Guide
American Bittern - American Bird Conservancy
Its retiring ways make it difficult to monitor, but the American Bittern is suspected to be declining, largely due to loss and degradation of its wetland habitats.
American Bittern - BirdWeb
Disturbance by recreational boaters and acid precipitation are both potential threats to the population, but the most significant threat is habitat loss. The population has declined throughout much of the United States, mostly due to …
American Bittern - U.S. Fish and Wildlife Service
Research Group Monitors Endangered American Bitterns in Norfolk
American Bittern - U.S. Fish and Wildlife Service
How rare are American bittern? - Birdful
American Bittern - All About Birds
American Bittern | Missouri Department of Conservation
Why are Least Bitterns endangered? - Birdful