Post by Deleted on Apr 23, 2020 13:39:10 GMT
Think I sold the book a few years ago GBH. However, this is an interesting article:
Effect of nestbox construction and colour on the occupancy and breeding success of nesting tits
And another:
Use by tits of nest boxes of different designs in pinewoods
Effect of nestbox construction and colour on the occupancy and breeding success of nesting tits
And another:
Use by tits of nest boxes of different designs in pinewoods