Thanks. I think they are mice... they look big because of the 300mm Canon lens I had on. ;)
Here is some of the configuration:
Camera: Canon EOS 400D DIGITAL
Lens: 75-300mm f/4 5-38
Focal Length: 255mm
CCD Width: 22.4
Exposure Time: 0.002s (1/500)
Aperture: 6
ISO: 400