Nice compact image,
imho --now you`ve got the Nikon (I started on Fuji S2,S3 S5 now moved to Nikon )
Shoot in Raw to get most detail in the shot ,you can always lose detail but can`t add it afterwards..
Use spot metering when isolating a subject . The focus in this shot is across several birds,if it was on one in particular say the one with the drip on its beak ,your eye would be brought into that point and then out to the other subjects.
If taking landscape or images that have lots of points of interest, focus 2/3 rds of the way in with a broad aperture to get everything in focus.
Manual settings if possible. Gives the best control (with practice)
Hope this helps