CHAP. 36. (25.)—BIRDS WHICH REMAIN WITH US THROUGHOUT
THE YEAR; BIRDS WHICH REMAIN WITH US ONLY SIX OR
THREE MONTHS; WITWALLS AND HOOPOES.
The time during which birds show themselves differs very
considerably. Some remain with us all the year round, the
pigeon, for instance; some for six months, such as the swallow;
and some, again, for three months only, as the thrush, the turtledove, and those which take their departure the moment they
have reared their young, the witwall [Note] and the hoopoe, for
instance.
