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 The demeanour of the two birds is at once visibly affected, and they begin to pipe again, though not so vigorously as before. They continue to do so, more or less, at intervals, the third bird (the female) remaining always passive, and never once piping. All at once one of the two pipers flies violently at the other, who flies off, and is closely pursued by him. They alight—it would seem together—on the edge of a great rocky slab, but are instantly at some little distance apart, looking at each other and bearing themselves after the manner of rivals. How they separated, whether as recoiling from a conflict, or avoiding it, I cannot now say. The movements of birds are often so quick, that the eye, though it may follow, forgets them as they pass. On another occasion, a bird close to where I sit, on hearing the pipe from a rock a little off the shore, becomes excited, pipes for a moment itself, and then darts off to the rock. On alighting, he instantly runs to the piping bird, and the two pipe together to a third, exactly as before. This third one, silent and unresponsive, soon flies away. The piping instantly ceases, and the two birds assume normal attitudes.

"The note of the male oystercatcher when thus courting the female differs both from its ordinary one, and, as I think, from that of the female. The usual note is a loud 'wich, wich, wich,' or some similar sharp, penetrative cry, constantly reiterated. The pipe is a much more wonderful affair, and, though harsh, is like a real composition. It is of long continuance, beginning with something like 'kee, kee, kee, kee, ker-vie, ker-vie, ker-vie, ker-vie, ker-vie,' a loud and ear-piercing clamour. Gradually, however,