白頭海鵰
The coniferous and deciduous forests of North America have long been the home of bald eagles. Bald eagle populations are now recovering after years of hunting, habitat destruction, and pesticide-induced deaths. In the early 1970s, Colorado had just one breeding pair of bald eagles but by 1993 biologists counted 19 breeding pairs. In Wyoming nesting attempts increased from 20 in 1978 to 42 in 1988. The bald eagle has