Great!
Good idea only a few minor detaels first is that the rolling done the hill scene was really choppy. it looked like it was only 5 frames with 10 of each. On artwork you did great only thing that annoyed me was the line under the pidgeon's eyes it made them look even more retarted than pidgeons (as if that were physically possible) and last just to point out an asshole detail squirrels fight with their claws and teeth.