When Hawks Nest
In March the hawks pair—and the pairs visit and examine all sorts of old nests. The nest of a kestrel is usually found in the heart of a wood—though it may be recognised as a kestrel's only by the sight of the birds flying off, for they rear their young in old sparrow-hawks' nests, or in a magpie's, a crow's, or in a squirrel's abandoned drey. The sparrow-hawk builds its own nest, as a rule, of rough sticks, with twigs as lining, usually placed near the tree's trunk. It will return to the same nest year after year. But at times the nest of a wood-pigeon is adopted, or of a carrion crow. The cock sparrow-hawk is a polite mate, perhaps of necessity, being so inferior to the hen bird in size and strength. He is energetic in inspecting nest-sites, in advance of his mate. This habit has proved fatal to many, for it is a favourite plan with some keepers to place a circular gin in likely nests—a cruel trick, and illegal, for the law which prohibits the use of the pole-traps forbids also that traps shall be set in nests. Faithful as are hawks and magpies to each other, it is strange how swiftly a new mate is secured should an old one suffer a fatal accident. In the earlier part of the breeding season, a hen sparrow-hawk may lose her mate time after time; yet a new mate is quickly at her side, though no other hawks are to be seen about the country, except those in pairs.
