THE GREY WAGTAIL 
MOTACILLA SULPHUREA 
Loca names in surrounding counties : 
Sratus 1n British Avirauna : A somewhat locally and 
sparingly distributed resident throughout England, Wales, 
and Ireland ; more commonly dispersed in Scotland. It is 
subject to considerable local or internal migration, in 
summer frequenting the moors, mountains, and uplands, 
in winter the plains and low-lying grounds. 
RapiaL DistriBUTION WITHIN FIFTEEN MILES OF ST. 
Pauw’s: The Grey Wagtail is occasionally met with be- 
tween autumn and spring in suitable spots well within 
the inner portions of our radius. From Chelsea upwards 
it pays irregular visits to the banks of the Thames, and I 
have a record of it from the filter-beds at Battersea; 
another from St. James’s Park. I have also seen it on 
the banks of the Brent between Hanwell and Brentford, 
as well as on those of the Wandle during winter. It is 
also a winter wanderer to Kingsbury Reservoir, the Welsh 
Harp, Hampstead Ponds, Muswell Hill, and the Epping, 
Wanstead, and Dagenham districts. I have a summer 
record from the banks of the Beverley Brook at Wimble- 
don, and I believe the nest was taken at Barnes Common 
some dozen years ago. Its breeding within the Metro- 
politan area, however, must be very exceptional, but its 
casual visits at other times are sufficiently numerous and 
widely dispersed to call for no very special remark nor 
record. 
The Grey Wagtail is more addicted to the waterside 
than any other British species of the group, and always 
prefers a mountain stream to a lowland one, but in autumn 
many of the northern waters are deserted, and then the 
bird appears near rivers and pools in the milder south. 
It is chiefly during this internal migration from the low- 
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