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256 against his views. Gradually, however, it began to be seen that they pointed rather in the opposite direction, and now it is recognised that Darwin was right. This being so, it does not appear to me absolutely necessary to suppose that when the little wood-warbler flies at his catkin and produces one of the prettiest little effects imaginable, he does so always merely to get a fly or a gnat. There are other possibilities, and I think that if our common birds were minutely and patiently watched, we might trace here and there in their actions the beginnings of some of those more wonderful ones, which obtain amongst birds far away.