All images taken with 500mm F4 IS with 1.4x extender and Canon 1D Mark IV on a monopod

Northern Harrier

White-Tailed kite, a couple of tree shots

The kite cruising for lunch

Three close fly-by shots

Hovering kite about to strike, heavily cropped. At sunset.

Gratuituous shot of moon while waiting for the birds, camera was mounted only on a monopod.