G&E Y WATE&-WAGTAIL, 
6< procures it's subsistence' beside the margin 
of perennial springs, and shelters itself beneath 
the shelving banks of rivulets. It finds it's 
situation so comfortable, that it even warbles 
in that torpid season, unless the cold be ex- 
cessive. This is a soft, whispered song, like 
the autumnal notes of the White Wagtail, and 
very different from the shrill cries which it tit- 
ters while rising into the air. In the spring, 
it removes, to breed in the meadows ; or, some- 
times, in the copses, beneath a root, and near, 
running water. The nest is placed on the 
ground ; and built with dry herbs, and moss, 
well lined with feathers, hair, or wool, and 
closer interwoven than that of the White Wag- 
tail. It contains six, seven, or eight eggs, of 
a dusky white, spotted with yellowish. After 
the young are raised, and the meadows are 
mowed, the parents lead them among the herds 
of cattle. Flies and gnats are then their food ; 
for, when they haunt the sides of streams, in 
winter, they subsist on worms, and also swal- 
low small seeds." 
From the above account, it might seem that 
Buffon thought this bird not migratory — ■ 
" However," 
