All manner of birds and beasties seem to love coming in to my house; when we lived at Darkes Farm we had squirrels, BATS, mice, RATS, and on the morning of another, long-ago birthday, I woke to the sound of giant flapping wings over my head and saw a great blackbird flapping round the bedroom.
This was thoroughly trumped by the latest visitor: I heard something scrabbling in the chimney (quite usual) but didn't think much of it, until I heard Helen open the door below me and let out a cry!
The door was hastily shut and I heard her calling for Mr M!
I thought it was (EVEN) worse than it was and that there was a rat running around in there, which we have also had before in that very room
which would be my worst nightmare, but it wasn't great anyway.They managed eventually to shoo a HUGE and very AGITATED crow out of the patio doors, and I'm glad to report it flew off in a lively enough fashion, but around the room were not just the expected great splodges of panicky bird poos, but also a trail of BLOOD
Dear STPD donned gloves and antibac and set to cleaning the room so I wouldn't have to see it, bless her heart... but I don't think she'll ever forget it....!!!!
Our handyman Jack happens to be popping by today so I'll see if he can come up with a solution, obviously you can put mesh over the chimney but I'm not sure he has the right ladders for roof-work.
All together now - POOR MERRY ON HER BIRTHDAY!
I do feel rather emotionally damaged 
Furby, I suppose the poor thing must have suffered an injury on its unplanned descent down the chimney inside, but hopefully it was ok as it did fly off. I saw three crows very lively and cheerful in the garden yesterday so I'm hoping Mr Tumble was one of those and all healed up.