The Common Chaffinch is an open nester that does not use nest boxes, instead building one of the most finely made nests in the bird world.
Nest site: in a fork of a deciduous or coniferous tree, 1-10 metres up.
Construction: the female builds a deep, cup-shaped nest of moss and fine stems, bound together with spider silk.
Camouflage: the outside is clad with flakes of lichen and shreds of birch bark so the nest blends in against the branch - one of the species' most distinctive traits.