gurgling trill of the long-billed marsh wren has been in my ears. If I have been here an hour, I must have heard that sound five hundred times. Once only, and only for an instant, I saw one of the singers. I have not been on the watch for them, to be sure; but if it had been earlier in the season I should have seen them whether I tried to do so or not. It must be that the little aerial song-flights, then so common and so cheerful to look at, are now mostly over.
In such a place, however, populous as it is, one does not expect to see many birds—blackbirds being left out of the reckoning—at any time. Swamp ornithology is mainly a matter of "earsight." Birds that live in cat-tail beds and button-bush thickets are very little on the wing. Here a least bittern may coo day after day, and season after season, and it will be half a lifetime before you see him do it. I have made inquiries far and near in the likeliest quarters, and have yet to learn, even at second hand, of any man who has ever had that good fortune. Once, for five minutes, I entertained a lively hope of accomplishing the feat myself, but the
