Composition is weak. The trees at the bottom distract from the main point of the image. The pigeons and weather vane are too centered in the image. Some judicious cropping would solve both of these problems. The bird to the right of the frame is nicely captured, the one on the left is a bit indistinct. The black and white presentation is nice, but it might be better with a bit of levels adjustment to give more life to the image.
i like this is black and white and it's a good shot, the only thing that lets it down IMO is the composition.
The trees are distracting and should have been cropped out completely or you could have use them to play a greater part in the scene.
I also dislike the way the wind dial is in the center of the shot and I think perhaps offsetting it to the left or right would have improved the overall composition.