Sarah, just as a little tip, the BG is clearly quite a way from the branch on which the bird is sitting so you can afford to go for a slightly narrower aperture, perhaps f 5.6, and still get good blurring. That in turn will give you a little more leeway in terms of depth of field so you should get the whole bird in good focus
Hope our little feathered friends put in another appearance tomorrow. Good luck!
Cheers,
Rob