The first site, a farm in Coal Aston, where we also do some mist netting was checked on 23rd. Unfortunately, this site was very similar to Linacre, with just 3 of the 6 boxes in use. One box had a fully lined nest, with 2 eggs, whilst the other 2 boxes had the start of a nest (N1) and a slightly more advanced nest (N3) in it. I'll check them again next week, to see what, if anything, has developed.
The other site, a churchyard in Chesterfield, was checked yesterday, and, thankfully, had 4 active nests with eggs in them and another nest that had been built by a Nuthatch. This nest didn't have any eggs.... yet! If it does get used, it will be the first time one of these boxes has been used by this species here. Again, I'll give it a few weeks and then pop back to see what's happening.