The only one who shows up for them at my house is the blue jay - he can finish off a bunch before I can get a shot - think he starts as soon as I close the door from putting them out. Your chipmunk is much cuter!
Cute little fellow! I had one coming to the door in May and early June, but he seems to have disappeared. Most likely due to the 2 feral cats we have stalking the backyard right now. Good shot!