Spotting Scope

I have been experimenting with the spotting scope I got for Christmas. It is really tricky to get a decent picture (these came from about three hours of work) because a) the zoom is so extreme it is hard to find your subject, b) my tripod barley holds the weight of my camera and scope together, so their is a fair bit of shake, and c) the depth of field through the tripod is very small, so with fast shutter times to minimize blur and a ?wide? aperture to accompany those, the depth of field is very very small. (I can be focused on the tail but the head of a duck that is 20 m away from me). Well, here are the results so far:

Long tailed ducks diving:

Female bufflehead (almost in focus)

Go here for a full resolution image.