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Rh, and not yet got to the one of thatching or lining. Numberless birds, including other members of this family, line their nests with grass or other soft materials, whereas plastering is a comparatively rare habit. It is legitimate to assume that that which is common has preceded that which is rare. I would here point out that whilst, in works of ornithology, reference is always made to the strange habit which the thrush has of daubing its nest, nothing, as a rule, is said in regard to the similar habit of the blackbird, or, if anything is, we are told merely that mud is used to bind the materials together. The facts, however, are as I state, and, did the blackbird not line its nest with grass after it had so carefully plastered it with mud brought from the waterside, it would be as noted in this respect as is the thrush, its near relative.

I have never heard the male blackbird sing whilst thus attending the female as she built her nest, not even when he waited for her in a tree, during the actual time of its fashioning, though here was a fine poetical opportunity for him. Song, it seemed, had ended when once his bride had been won, and his rivals vanquished by it. It was the same, to a considerable extent, with a pair of nightingales that I watched under similar circumstances. I did, indeed, sometimes hear the song when the bird singing was invisible, and, therefore, I cannot say that it was not this particular one, which, for other reasons I am inclined, to think that it was. But during far the greater part of the time, and always when I could see him, he was as silent as his mate. It was in the early morning and not the night-time, but nightingales sing at all hours, both of the day and night. The early