The Yellow Wagtail. 191 



number of them were males. Their numbers diminished regularl}' day by day, 

 and at the same time I began to see pairs in their usual places in the neighbour- 

 hood evidently preparing to nest. In a few days the}' were nearl}- all distributed 

 over the country-side." 



The site chosen for the nest is frequentl}' a furrow or depression in the earth 

 in a pasture or cornfield, partly concealed by coarse herbage or a dislodged grassy 

 clod, sometimes in the side of a deep pit partly filled with water and overgrown 

 with rank grass and nettles, or in a sloping bank covered with weeds and wild 

 flowers, or again among the long coarse grass at the foot of a wall. It is by no 

 means an easy nest to find, for it never seems to be exposed like that of the Pied 

 Wagtail, and therefore is more often discovered b}' accident than by design : that 

 is to sa}^ when carefull}' searching every foot of ground with a view to securing 

 a possible nest of Sky-Lark or Tree-Pipit, one maystumble iipon that of the Yellow 

 Wagtail. The nest is constructed of coarse drj^ grasses and rootlets, lined with 

 finer rootlets, fine bents, black and white hair, or sometimes with green moss, 

 rabbits' down, or sheep's wool : feathers are said to be occasionally used.* The 

 eggs number from five to six, and usually closely resemble those of the Sedge- 

 Warbler, excepting that they are larger ; the paler varieties are greyish-white more 

 or less densely mottled with pale clay-colour ; but more often this mottling spreads 

 uniformly over the whole surface, rendering the shell uniformly pale stone-brown, 

 (like some eggs of the Partridge) there are usually one or two short black hair- 

 lines at the larger end. 



The call-note is a soft monos3-llabic whistle, and the note of excitement a 

 shrill scizziir : the song, which is rareh' heard, somewhat resembles that of the 

 Swallow. 



My first experience of this species in confinement was a short one. In the 

 winter of 1889-90, a bird-catcher brought me a specimen which he had carried 

 about in a cage with linnets and other birds all da}- ; no water being supplied and 

 only seed being available for food : the poor thing was so exhausted that it died 

 the following morning. My second bird was given to me in 1894, by Mr. Staines, 

 of Penge, who had already had it in a room for some time. I turned it out into 

 a cool aviary with my Grey Wagtail, where it spent the winter without mishap, 

 though the temperature on one or two occasions registered twelve degrees of frost: 

 in the spring it came into grand colour, and then began to persecute its Grey 

 relative, so that eventually I had to place it in a large flight-cage : this I suppose 

 it resented, for (shortly after I had acquired what I then supposed to be a hen) 

 in the autumn of 1895 it died. My third bird I purchased from a bird-catcher, 



♦ 1 have uot, however, met with ihis material iu the liuiug. — A. G. B. 



