Hey Steve.
Great photos, nice blog.
I noticed a good bit of your photos are what I've heard referred to as "animal portraiture".
One suggestion or recommendation.... if at all possible try to capture the "glint" in the animal's eye. It gives the animal "life" and makes a great focusing aid (when the glint is sharp...shoot!).
Did some time with the feds myself, USF&W.
Thanks for the link, I enjoyed the photos.