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 necessity; but, according to my own experience, it requires a nice ear to distinguish the bleating of the one sex from that of the other. There is, indeed, some slight difference in the sound made by each individual snipe, but I only once remember hearing one bleating with a markedly different tone. Here the sound had a lower, softer, and deeper intonation, and was, to my mind, a more musical sound altogether. When heard just before or after the bleat of another snipe the difference was very marked, but I considered it to be rather an individual than a sexual distinction, for I do not know that there is any reason to suppose that the female snipe bleats less frequently than the male except when she is sitting on her eggs.

Snipe, when bleating, fly round and round in a wide irregular circle, and for a long time one will not over-step the invisible boundary so as to encroach upon the domain of the other. It seems—but the illusion will be broken after a time—as though each bird had his allotment in the fields of air and knew that he would be guilty of a rudeness in entering that of another. Thus, though three or four of them may be flying and bleating in the neighbourhood, it is often difificult to watch more than one at a time with anything like closeness of observation, a difficulty which is often increased by the failing light; for, in my own experience, snipe bleat best either in the early—though not very early—morning, or when evening has begun to close in. To follow their wide, swift, eccentric circle of flight one must keep turning round on a fixed point, and this, amidst swamp and grass-tufts, is difficult to do without losing one's balance. Yet still one watches and turns and strains one's eyes