The Naturalist's Corner
ake J eagle
Not a winter has passed in the last four years or so that a bald eagle — mature, immature or both — has not been sighted at Lake Junaluska. Usually they’re here today and gone tomorrow, but this winter a visitor has lingered.
A mature bald eagle has been hanging around Lake Junaluska for about a month. Last I heard — last week — it was still there. I believe the drawdown of the lake probably accounts for this bird’s decision to linger.
Eagles around the world are divided into four general groups — fish eagles, harpy or buteonine eagles, true eagles or booted eagles (the golden eagle is in this group) and snake or serpent eagles. The bald eagle, Haliaeetus leucocephalus, is a fish eagle.
A large portion of the bald eagle’s diet, as the name implies, is fish. Another bald eagle staple, especially here in the south in the winter where they tend to congregate in large numbers, is the coot — you know, that gangly dark bird that looks (acts) like a cross between a chicken and a duck, found around the lake in the winter. I believe the drawdown concentrated both of those food sources in small areas making a meal a little easier to come by.
There are two recognized subspecies of bald eagles — northern, Haliaeetus leucocephalus alascanus, and southern, Haliaeetus leucocephalus leucocephalus. The southern bald eagle is a smaller bird and I believe the bird at Lake Junaluska is a southern. Now, bald eagles like most raptors exhibit a “reversed” sexual dimorphism, meaning the female is larger than the male. In some cases, the size difference between a female southern bald eagle and a male northern bald eagle can be minimal, and since southern bald eagles have been found in Canada and northern bald eagles have been found in Mexico, the “southern” moniker is just a guess.
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Redefining success
Protection of the bald eagle actually precedes the Endangered Species Act of 1973. The Bald Eagle Protection Act was passed in 1940 and the bald eagle was officially listed as endangered in 1967 under the Endangered Species Act of 1967, the predecessor of the current Endangered Species Act.
There was much fanfare in 2007 when the bald eagle was officially removed from the ESA. The big whoop-de-do at the Jefferson Memorial noted the 40-year, 25-fold increase in nesting pairs of bald eagles in the lower 48 states to an astounding 10,000 pairs. Today it is estimated that there are between 70,000 and 80,000 bald eagles in North America.
Before our forefathers arrived here and cleaned up the desolate old growth forests with their clean air and pristine water to create the urban utopia we know today, more than half a million bald eagles lived in North America.
To restore that population to roughly 15 percent of its former status is a rousing success?
Don Hendershot can be reached at This email address is being protected from spambots. You need JavaScript enabled to view it.
