The American Kestrel is a raptor that often perches on power lines along the road. Generally they give you only a second or so to grab a quick shot before they fly off after you pull over on the side of the road near one. That is, they give you a second or so if you're lucky. However, this particular Kestrel had caught a mouse and wasn't so quick to take off.
One of my earliest wildlife photographs, this chipmunk has his cheeks stuffed full of nuts and seeds. He hopped out onto a rock in my mom's flower garden to have a look at me before scampering off to hide his haul.
I once spent a week on the Upper Mississippi River freezing my butt off photographing bald eagles. The wind chills on the river were reaching -30 degrees F. However, it is totally worth it when you have 1000 bald eagles in one place,.