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 tween them, they stand for a moment looking at each other, yet without any very warlike demonstration. Then, all at once, one darts upon the other—so swiftly that I cannot be sure whether he flies, hops, or does both—and there is now a fierce and prolonged fight. For a moment or two they are in the air (though not at any height), then struggling on the ground, when one, getting uppermost, holds the other down. At last they separate, and for a few seconds stand close together as though recovering breath. Then, as by mutual consent, they retire from each other to a short distance and hop about again in the same manner as before. One of them then again flies singing into the air, and on coming down dances, but to this the other does not respond, and now all goes on in the usual way, the birds getting once or twice again quite close, but separating without fighting. At half-past four there is another twittering flight into the air, and a dance on descent, which is emulated in a few minutes by the rival bird. Shortly afterwards one flies a considerable way off, but is followed almost at once by the other, and the same thing goes on. Then there is another flight and song with, this time, no dance on descent, but, as though to make up for this omission, on the next occasion, which is some few minutes afterwards, there are two distinct transports on alighting, separated by a short interval. On this occasion the bird did not sing either in ascending or descending.

"Here some other birds claimed my attention, and I was away for a quarter of an hour. On returning, at a quarter to five, I found the two wheatears still together, and precisely the same thing going on.