You have to look twice to see the trash-can snow-man in the first pic.
Thats not a trash can, its my squirrel baffle
. Its a piece of 12" round duct with an end cap(plug), slid over a a piece of 3/4 rigid. They try to climb the rigid to get at the bird feeder only to find themselves inside the duct. Only thing I've ever seen that keeps the furry rats out of my feeder.
Putting grease on the rigid post works also. Pretty funny watching them try to climb a slippery pole