Matt, November can be very snowy in Haines, but not always. Days are short. I've been there for a few weeks when it was mostly cloudy all the time, and also when the snow was 6 feet deep, and there were no plowed places to pull off the road to watch/photograph the eagles. Yes, there will be lots of eagles (one year I was there, a reasearcher counted over 7,000), but don't expect it to be easy. The best shots I've seen from Haines were on a mostly clear day, with eagles soaring in front of the mountains.
Steve, they weren't always protected from hunters. From 1917 until 1953 there was a bounty on bald eagles in Alaska, as people thought they killed too many fish. During that time, 128,000 eagles were killed for a $.50 to $2.00 bounty/eagle.