I've put dog fur in one of the bird feeders for the birds to line their nests with. The Great Tits have been very busy collecting it. Poor Lesia and Tia are getting brushed more frequently to keep up with this free nest lining material. In fact, Inca our cat has been contributing too!
Same at our Garden also Chantal, I made ten tit boxes but only three are being used at the moment, made five wren and Robin nests boxes but no nesting birds in these as yet...Fav.