Designed by our team of ornithologists for the love of nature, the national trust range not only provides a well designed outdoor focal point, but also helps your garden come to life'. '.strtoupper('t')he national trust vail larch 32mm nest box is a lovely elegantly desgined nest box and will make a wonderful addition to any garden or outdoor space'. '.strtoupper('w')ith a classic nest box design, it has a green sloping edged roof and is optimized with the addition of a nest box plate to protect nestlings from predators such as woodpeckers'. '.strtoupper('t')he 32mm hole size will be suitable for a variety of tits and smaller birds'. '.strtoupper('t')he nest box can be opened at the side for cleaning after the breeding season'. '.strtoupper('t')his is generally around october when you can be sure that no more birds are breeding inside a clean nest box will also attract birds who want to use it as a shelter during colder winter months'. '.strtoupper('t')here 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