For Green Woodpeckers:
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height, 19¾ inches; depth back to front, 9 inches; diameter of opening, 2⅜ inches. |
The measurements for the Wild Pigeon are the same as these last, except for the opening, which should be about 4½ inches wide.
Flycatchers and Wagtails require a box as shown in Fig. 4. This is 9 inches high, and has an opening about 4 inches square.
The edge of the entrance to a nesting-box should be rounded off, as in the hole of a tree, to make it more natural to the bird’s feet.
The nesting-boxes should be fixed in orchards, gardens, and houses on the edge of a forest, on the trunks of trees and branches, also on poles, and fastened by means of strong flexible wire, or, still better, by screw-nails. They should be placed perpendicularly, slightly inclined or crooked, but never inclined backwards as the rain gets in and the Titmouse has sense enough to avoid such a nesting-box. They should be fixed a little lower than the average height of a man, and so arranged that the morning sun strikes the entrance hole if possible. The box is an exact copy of the nest-hole of the small spotted Woodpecker, and experience teaches us that the unoccupied nest-holes are frequently used by the Titmouse. In spring the Titmice not only fight among themselves for the possession of these nest-holes, but also with the hosts of House Sparrows which strive to rob them of the holes. These Sparrows come in crowds and make a great noise in the place. Being of a powerful build, and provided with sharp beaks, the birds finally oust the Titmice. To contravene the House Sparrow we must hang the nest-box somewhat low, about one yard from the ground. The careful and suspicious bird dares not trust himself in it. The Tree Sparrow, which does not come too near the haunts of man, but hovers on the fringe of the villages or street gardens, bushes and heaths, is a trusting bird, and not very heavy. It likes nest-holes immensely, and attacks those which are placed low, driving the Titmouse out. The Hedge Sparrow, again, lives on insects, but he is not clean, and is no friend of the garden; therefore, when we find him fighting with the Titmouse for possession of the nest-holes, we help to oust the Hedge Sparrow in the interests of the garden and the wood.
