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330 comes up with its green, shining burden, with which it at once swims to the great heap of similar material which both have collected, and which projects a few inches above the water, at but a short distance from the bank. The male is, if possible, more earnest and indefatigable in the great work than even the female, and, sometimes, he will work for a little alone, whilst she is resting. Yet, with all this, it is apparent, at once, that she is the more effective of the two, in her actual workmanship. She dives more quickly, and comes up each time with a larger load, so large, sometimes, that her head is pulled right back as she drags it along the surface of the water. She places it, too,—if this is not fancy—a little more deftly and quickly, showing in everything a higher degree of professional skill, though her colleague, besides being second only to herself in this, seems, as I say, to glow with a more ardent enthusiasm.

Huge as the mass of weeds is, which constitutes the nest of these birds, it is collected by them in an astonishingly short space of time; how short, I am not quite sure about, but this I can positively say, that whereas on a certain morning I could see no trace of it above the surface of the water, on the morning after this it was to all intents and purposes finished, though the male bird, alone, once added very slightly to it, not occupying more than a few minutes in so doing. As to this, however, it can be said, in a certain sense, that the nest never is finished, or, at any rate, not till after the female has begun to lay her eggs. Morning after morning the male brings weeds to the heap that his partner is sitting on, but as I had to leave early in