Bald eagles achieve their white heads & full adult plumage at approximately 5 to 5 1/2 years of age and the eagle highlighted in the photos below is just on the cusp, most likely 4 1/2 years old.
His/her head almost appears to be slightly soiled with a muddy like streak from the eyes to the back of the head, so we are almost there.
Bald eagles may mate at the age of 4 years so perhaps this bird of prey has or is looking to court a partner. It will be a long & lifetime partnership if it is successful so hopefully he/she will choose well. :)
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