Canon DSLRs of some sort, I doubt they were all with the same camera.
The eagle from Sitka was caught with a 7D and an EOS 100-400 IS.
The pronghorns at the top were caught with a 20D with a 500 + 1.4 TC. Pronghorns tend to be reluctant to hang around.
The cara cara was shot with a 1DsMkII that belongs to my son.
Lenses are more important than bodies, usually, at least if the light is decent.
Thanks for the nice comment.