Hi Alina,
I know I must admit a was a little cross with him, he's PROMISED me he checked all the way up the tree as he was going, and thought he might as well do it while he was doing his hawthorn!
To be fair to him the birds do seen to be on the other side of the garden where we have the laurel and the ivy and I know we've had them rebuilding in the Ivy on the house, I'm guessing it's more sheltered, warmer, better larder......
I've cleared most of the branches away now and so far I've not come across any evidence of even nests let alone eggs or chicks, but we'll see after I've got through the 4th and final mound, but this one is hte big stuff from the bottom so I think we're ok!
Needless to say the much beloved has been quite bemused by me making him promise not to touch ANYTHING else that even remotely looks like they might nest in until Sept / Oct!