rip out the inner wall, including the roof lining, and leave the building permanently without lining. The mice moved out. But that was not the end of the problem. They moved into the other building which was lined, and took up residence in the roof. A nightmare scenario! The patter of feet which I was hearing daily were those of mice. There
26 BIRD SCENE
was no alternative but to take the roof off and construct an entirely new one. That was four years ago and my bird room is now mouse- free. One advantage was that with the new roof I did away with the skylight windows. Its inclusion had been a mistake because it caused condensation to drip from the roof to the floor.