I really like DOF (depth of field) in Photos 2 and 3 and that little red-chested fellow in Photo 8!
Bird photography is not an easy thing to do, I have only experienced as much on Wednesday morning ... might show you some of my meagre results eventually, if I can make myself show them... but you tried. Once you know your camera better, your bird photos will become better, too. 2 and 3 are quite much on the way.
And you might need to think about using some post processing software for often enough the photos that come straight from the camera can be made more "effective" afterwards (which is NOT cheating on things). Which does not mean to say: apply some funny filters or things that really change the photo into a piece of graphic something (not arts), but simple things like adjusting contrast, light, colour saturation ... things that a machine that might produce prints out of your pics would use, too (supposedly).