Upper parts light greenish brown; the middle of each feather, being darker, gives a mottled appearance; under parts very pale brown, spotted with darker brown on neck and breast; feet light brown. Length, five and a half inches. _Female_ without the brown spots on the breast. * * * * * This warbler arrives in our country about the middle of April, sometimes a week, or even a fortnight, earlier. In the melodious family to which it belongs it is distinguished by the singularity of its voice, which has no musical, or song-like, or even bird-like quality in it, but is like the sound produced by some stridulating insects. It is to be found in suitable situations throughout England and Wales, and in many parts of Scotland and Ireland. It frequents both dry and marshy ground where dense masses of vegetation afford it the close cover which would seem necessary to its frail existence; thus it is found in reed-beds growing in the water, and in hedges and thorny thickets, and among the furze-bushes on open commons. Although thus widely distributed in the British Islands, it is, like the nightingale, very local, and reappears faithfully each spring at the same spot. How strong the attachment to place, or home, is in this species will be seen in the following fact: Having found a small colony of about half a dozen grasshopper warblers inhabiting a circumscribed spot in the middle of an extensive common, I went back to the place in three consecutive summers, and each time found the birds in the same bushes. Yet the dozen or twenty furze and bramble bushes which they inhabited were in no way, that one could see, better suited to their requirements than hundreds of other bushes of the same description scattered over the surrounding land. Nor were any other individuals of the species to be found in the neighbourhood, except one pair, which were always to be met with in some brambles about a quarter of a mile from the spot inhabited by the other birds. Such a fact appears to show that, not only do the old birds return year after year to the same breeding-place, but that the young also come back to the spot where they were hatched; also, it appears to show that in this frail and far-travelling species the annual increase is only sufficient to make good the losses from all natural causes.