There is a shortage of natural nesting sites, which is thought to be one of the major factors behind the decline of some of our once most-common birds. By putting up nest boxes, such as this, which replicates a bird\'s natural nesting preferences, you can encourage them to breed near your home. This 28mm hole nest box will be used by Tree Sparrows, Blue Tits, Coal Tits, Great Tits and Crested Tits. Different species prefer different nest boxes and our range has been designed by our team of ornithologists to optimum dimensions for the species concerned. Look out for regular visitors to your garden and choose a box which best suits their needs. Take a look at our other Wooden Nest Boxes.