Naturally they would use holes in trees, crannies in rocks and secure places in trees and hedges to build their own. Offering a wide range of natural habitat in your garden will present birds with many handy spots to build their own nests.
Different birds have different nesting habits. Wrens like to build a cave-like nest of moss low down. Blackbirds will make a mud and twig open nest higher up in hedges. Finches make elegant pockets in trees.
With habitat at a premium, many birds will readily take to artificial nest boxes. There are many styles and designs made for different sorts of birds and their preferred nesting habit.
National Nest Box Week is the 14th to 21st February each year