Wow, tons of great pics in here! Here's my contribution.
A male Common redpoll. This little guy had crashed in a window, but luckily he was only stunned by the impact. I held him in my hand until he started to feel better, then placed him on this wooden beam and took some pics. He flew away a few minutes later.
*ist DL2, Haminex 80-200mm f/4.5
ticoun on deviantART
Here's a hungry red squirrel, happily eating sunflower seeds.
*ist DL2, Haminex 80-200mm f/4.5
ticoun on deviantART
And an other squirrel, caught while he was climbing a tree.
*ist DL2, Haminex 80-200mm f/4.5
ticoun on deviantART
I've got many more great animal shots, but a lot of them are zoo shots, which don't really fit in this thread. I can still post a few if you guys are interested in seeing uncommon animals.