I agree, you shoot with what you have. Most of my Eagle shots are done with my 300mm or my 80-200mm if I want to get a single Eagle (hard to do at the Homer Spit). This year I am going to take a wide angle photo with about 100 Eagles on the beach.

Last week the temps here were in the 30-40F but this week they are in the 20F. I live in Soldotna, not Fairbanks (500 miles to the north). Fairbanks is where it gets cold.