As foliage thins on the trees, squirrel photography season really gets into gear for me. I'm a lot more likely to use longer zooms as my walking-around lens. These were with the 18-200mm f/3.5-5.6 VR II on the Nikon D300S. That's the equivalent of a 300mm focal length on a full-frame camera.
You don't get these shots with a cell phone.