TS,the 70-300VR is not a very fast AF lens, toooo wide a focal range, IQ wise is pretty ok. the VR is a godsend and very handy but if you are really going to shoot bird at those few places u say u might use the lens, the range just might not cut it. image is sharp only up to abt 10-20m the sharpness start to roll off abit if your subject is really far from u, but most ppl will not feel it unless when u pixel peep.
own the 70-300VR and used to use it with my D80, so effective is 450mm and i still cant reach if shooting birds, the bird is like 5-10% of the frame most of the time. mostly use this for candid ppl shot, let you snap ppl from afar without them noticing your presence.
IMO birding shoot, one would need 400-500mm or more most of the time. cheap ---> expensive way is sigma lens, TC + 70-200F2.8, TC + 300F4, prime 400mm/500mm/600mm.
moi 2cents
own the 70-300VR and used to use it with my D80, so effective is 450mm and i still cant reach if shooting birds, the bird is like 5-10% of the frame most of the time. mostly use this for candid ppl shot, let you snap ppl from afar without them noticing your presence.
IMO birding shoot, one would need 400-500mm or more most of the time. cheap ---> expensive way is sigma lens, TC + 70-200F2.8, TC + 300F4, prime 400mm/500mm/600mm.
moi 2cents