The White-tailed Eagle is a large bird, 69–92 cm (27–36 in) long with a 182–244 cm (72–96 in) wingspan.
Females, weighing 4–6.9 kg (8.8–15.2 lbs), are slightly larger than males, which weigh 3.1-5.4 kg (6.8–12 lbs).
It is the fourth largest eagle in the World. It has broad "barn door" wings, a large head and a thick "meat-cleaver" beak.
The adult is mainly brown except for the paler head and neck, blackish flight feathers, distinctive white tail, and yellow bill and legs.
In juvenile birds the tail and bill are darker, with the tail becoming white with a dark terminal band in sub-adults.
Some individuals have been found to live over 25 years, 21 years on average.
http://en.wikipedia.org/wiki/White-tailed_Eagle