Unless there are trees or buildings which shade the box during the day, face the box between north and east, thus avoiding strong sunlight and the wettest winds. Many birds will enter nestboxes during the autumn and winter, looking for a suitable place to roost or perhaps to feed. Fixing your nestbox with nails may damage the tree. In gardens a nest box can be hung on every second tree if there are few other nesting sites nearby. Before heading up the tree, it is worth spraying the inside roof of the nesting box with an insect repellent (e.g. Nature Guard), as this may act as a deterrent to feral honey bees, discouraging them from invading the new box.
The weight of the box and roughness of the tree bark should be sufficient to hold the box in place. Many birds are territorial so placing boxes too close to each other can cause problems although sparrows are happy nesting as a community. Attract birds to your garden by creating a nest box for them to raise young in, in this simple step by step project, from BBC Gardeners’ World Magazine. Drill a hole in the top of the bird box and attach it to a tree using a screw. Don’t use nails to fix your nest box to a tree which may damage it. Remember that trees grow in girth as well as height so you will need to check the fixing every couple of years.
Barn Owl boxes in buildings are better than nestboxes in trees. You can build a Barn Owl treebox or you can simply buy a Barn Owl Trust nestbox for fixing to a tree. The information here will help you determine if boxes are appropriate for your site, and also how to select the safest installation locations. Nesting boxes can work in trees as well, but are typically trickier than post installed boxes. This involves placing boxes in pairs on poles 15 to 25 feet apart. Or, you can put two boxes back to back on a single pole. Birds such as Tree Swallows and bluebirds will nest closely to one another, although they will drive away others of their own species.
Bird Nest Boxes
Wrens, bluebirds and tree swallows are the birds most commonly attracted to single-unit, enclosed bird houses. A nest box for the tree swallow must be placed in the open on a fence post or special box support. After hatching, the larvae feed on the blood of the bluebird nestlings by attaching to their feet, legs, abdomen, bill, or wing and tail feather shafts. Many Australian birds nest in tree hollows of different types and in different environments they can t breed anywhere else. If you attach your nest box to a tree, run wire through a length of garden hose to protect the tree from damage. This weekend we will install our Little Bird Box on a three hundred. When attaching to a tree avoid using nails as they damage the tree. The boxes are supplied with garden wire which can be used to attach the boxes to a branch or the trunk.