I've had the pleasure of fishing the Allegheny the past 2 years to the frequent company of bald eagles, or, as we say, Ball-Iggles. No "D" ; swap the E for an I. I still get excited when I see them.
I think there are more out here in this region than further east or in Central PA. They like the lakes and the profusion of big, smooth-flowing rivers. Pymatuning Resivoir had several nests for many years but the birds never "took off" (Sorry). For some reason, the past 5-10 years have seen more eagles repopulating the region.
They are always a special treat, even if I see them every other day.
Identification: In the eastern part of the state, you are in a more dense migration route. You might, just MIGHT stumble onto a golden eagle. But until someone proves me wrong, any bird that I identify as a B.E. is just that. They are the easiest birds to ID. It's the only bird of that size and coloration (dark) that has straight, non-"V" wings (vultures). In fact , the B.E. wings are very straight. Board-straight, I describe them as. The hawks I've seen have some other contours or rounding to their wings. I've I.D.'d B.E.'s at about a mile away.
Syl