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 also, perhaps, that it is more easy to look upon them as sudden bursts of excitement—nerve-storms or emotional whirlwinds, so to speak—than as displays intended to attract the attention of the female bird. Certainly there was nothing like a set display of the plumage; and, with regard to the female, the question arises, Where was she, at least during the greater part of the time? The two male birds in the course of their drama got over a considerable amount of ground, and constantly flew from one part to another, so that, in order to have had anything like a good view, the female must have accompanied them, and I must then, perforce, have seen her, which I did not, except on the occasions related. She was, therefore, not with them, and, if watching them at all, could only have been doing so from such a distance that the dancings of the male birds would have been very much thrown away. Yet that she took some interest in what was going on appears likely from her flying up twice into the willow tree during its continuance, and being with the two rivals at the end of the day. She might, too, have been listening to the song and observing the flights up into the air, which would have been much more noticeable from a distance.

One might expect a female bird to take some interest in two male ones fighting for her merely, without any adjunct, and if they added to the fighting peculiar violent movements, such as those here described, that interest would tend to become increased. Now I can imagine that with this material of violent motions on the one side and some amount of interested curiosity on the other, the former might gradually come to be a display made entirely for the female,