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Birds of the Pacific

Bald Eagle Haliaeetus leucocephalus

Bald Eagle Distribution Map

Bald Eagle Distribution Map

Bald Eagle Conservation

The story of the plight of bald eagles to egg shell thinning from ingestion of organochlorine pesticides is one of the most widely and thoroughly documented impacts on wildlife (review by Buehler 2000). Following a ban on the use of DDT in North America, numbers have risen exponentially. By 1980 there might have been 70,000 to 80,000 eagles and by 1999 an estimated 100,000 eagles were present mostly in British Columbia and Alaska. Breeding eagles are now present in many states and provinces.

 

References

 

Buehler, D. A. 2000. Bald eagle Haliaeetus leucocephalus. In the Birds of North America, No. 506.

            The Birds of North America, Inc. Philadelphia, PA. USA

Butler, R.W. 1997. The great blue heron. UBC Press, Vancouver.

Campbell, R.W., N. K. Dawe, I. McTaggart-Cowan, J. M. Cooper, G. W. Kaiser, and M. C. E. McNall. 1990. The birds of British Columbia. Volume 2. Royal British Columbia Museum, Victoria.

Stalmaster, M. V.and J. A. Gessaman 1982. Food consumption and energy requirements of captive bald eagles. Journal of Wildlife management 46:646-654.

Stalmaster, M. V. and J. A. Gessaman. 1984. Ecological energetics and foraging behaviour of

            overwintering bald eagles. Ecological Monographs 54:407-428.

 

 

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