Might be a bit big for a long tail tit, should be about 4 inches across by 6 long. 'Moss like' is the right sort of material though. If it is it would have an entrance near the top, probably not too obvious. Must say my first thought was it is the right size and shape for wasps though. we get occasional hornets, but they are not common here, DirtMechanic.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.