Chipmunk wasn't the only hyperphagia "victim" of the day.
His feeding floor partner the Eastern Grey (or Gray) Squirrel, Sciurus carolinensis, has been working on her winter fat storage for some time. Note the rolls of fat around her neck. And she's managed them with a baffle on the pole of the sunflower seed feeder.
A Grey Squirrel factoid: These squirrels were introduced to the UK. They have displaced the indigenous Red Squirrel in many parts of Britain and are now working on Ireland.
Humans really should be more careful.