“‘In some places in the West and South, telegraph poles pass for miles through treeless plains and savannas. For lack of better perches, the Sparrow Hawks often use these poles for resting-places, from which they make short trips to pick up a grasshopper or mouse, which they carry back to their perch. At times, when grasshoppers are abundant, such a line of poles is pretty well occupied by these Hawks. In the vicinity of Washington, D.C., remarkable as it may appear to those who have not interested themselves specially in the matter, it is the exception not to find grasshoppers or crickets in the stomachs of the Sparrow hawks, even when killed during the months of January and February, unless the ground is covered with snow. It is wonderful how the birds can discover the half-concealed, semi-dormant insects, which in colour so closely resemble the ground or dry grass. Whether they are attracted by a slight movement, or distinguish the form of their prey as it sits motionless, is difficult to prove, but, in any case, the acuteness of their vision is of a character which we are unable to appreciate. “‘In the spring, when new ground or meadow is broken by the plough, they often become very tame if not molested. They fly down, even alighting under the very horses, for an instant, in their endeavour to capture an unearthed mouse or insect.’” “Aren’t there any _bad_ Hawks, then?” asked little Bobby, incredulously, for to him the cry of “Hawk!” and the sight of the hired man with the gun came together. “Yes, Bobby, plenty of them, even hereabouts; the Sharp-shinned and the Chicken or Cooper’s Hawk, both of them flash out of the sky and pounce cruelly on both game- and song-birds. And, let me tell you all something, though I do not wish to kill any birds needlessly, yet I would not let any of these Hawks, useful or otherwise, nest or feed near Birdland, and I should have Jacob frighten them away with blank cartridges, because the very sight of them terrifies the beautiful song-birds that we love, and that trust us and confide in our protection. “The little Screech Owls may play about if they will, but neither Crows, Jays, Hawks, nor English Sparrows can ever be welcome garden guests.” Something to remember about Hawks and Owls.—_The female is always larger than the male!_ [Illustration: SPARROW HAWK] XIII TREE-TRUNK BIRDS _Woodpeckers—Nuthatches and the Brown Creepers_