There are five to seven eggs, whiter in ground colour than those of the reed warbler.
How rapid the spread was of the reed warbler through the large insular area that it now occupies is unknown.
Very strange is the sight it presents when so doing—a bird as big as a fowl behaving like a reed warbler.
The song of the reed warbler is loudest and at its best during the evening twilight.
This done, the reed warbler flew away for a fresh supply of food.
It nests in drier places than the reed warbler and its song is different, being much more melodious, and uttered more boldly.