A stroll around the Upton Marina

Went for a stroll around the marina tonight this little fella sat in the tree waiting to be bliped

One thing I have noticed since I got my camera is it seems to look for wildlife more than any thing else and a longer lens is needed

My current lens is a 24-85mm 1:3.5-4.5 G and was thinking of going for the 55-200af but now I think I should gor for one a bit bigger as I want to be able to get close up shots of the smaller garden birds

any suggestions?