Great photo of the male, looks like the small bird population of Marple better watch out. If they nest the male will have to do all the hunting while the female stays with the eggs (3-6). The female has sole care of the eggs and young, while the males' role (from egg-laying through to fledgling) is to provide all food required by the female and the chicks. The female will hunt as the chicks get older, but only if the male is unable to catch adequate food by himself.
Sparrowhawks time their nesting so that they have chicks when there are plenty of fledglings of small birds, usually around June time.
Please, if anyone spots their nest, don't post the location on the forum as the eggs could be stolen, there are about 40,000 breeding pairs in the UK.