BRITISH BIRDS. 
215 
conftant, bold, intruding attendants on their nets, 
from which they find it difficult to drive them away. 
This fpecies, like the preceding, is met with in the 
cold northern feas, but has been obferved to wan- 
der farther into fouthern climates. 
Naturalifts are divided in their opinions refpe^l- 
ing the Black-backed Gull, the Herring Gull, and 
the Wagel : it is by fome fufpe<5led that they are all 
of one fpecies, and that the difference between them 
is owing merely to their age and fex. This, as well 
as much more refpeding the Gull tribe, remains to 
be determined by further inveft igation. The Glau- 
cous Gull of Pennant and Latham, which they do 
not confider as a Britifh bird, called by the Dutch 
Burgermeiffer, or Burgomafter, and figured in the 
Planches Enluminees under the name Goiland 
cendree, is alfo one of the number involved in the 
fame doubt, and is probably not a fpecies diftind 
from the Herring Gull ; and Latham has the fame 
doubt refpecling the Silvery Gull. 
