I have a CANON 30d now but need to move up a better one...which would be better for OUTDOOR WILDLIFE
photos...BIRDS...HAWKS...etc etc...A 50D or 7D...i still want to stay with the DX...not full frame yet
7D autofocus is highly advanced and customizable. I reckon that if you're going to be photographing birds in-flight, the 7D is definately your best bet. Crop cameras also have their greater effective focal length, which is also nice for birding, so yeah... 7D all the way. Mind you though, it'll take time to learn and master the AF abilities that it offers - lots of experimentation. But it'll open up the possibility of shots that are hard or impossible to get with anything less.
My first DSLR kit was the 50D and the 100-400 (and the 28-135 kit lens). I wanted to take photos of the large Florida birds after we moved here. The 7D was introduced later and I looked, read reviews and decided it was good for me. Saved and got one. Liked it so much that I wanted a second to replace my 50D. Discovered the CLP and ordred my second.
The autofocus alone made this a superior camera to the 50D for BIF. I had been shooting the 50D tripod mounted on a 500mm and the 7D handheld on my 100-400mm but the second 7D made the whole operation better.
Get the 7D, after the first month or so you won't regret it The autofocus will take some time to really master but the 7D is worth it.