212 



BRITISH BIRDS. 



THE BLACK-HEADED GULL. 



IMMATURE. 



THE fore part of the head white ; the space round 

 the eyes dusky: from the corner of each eye is a 

 broad dusky bar, surrounding the hind part of the 

 head; behind that is another reaching from ear to 

 ear: the ends, interior and exterior edges of the 

 three first quill feathers, black; the ends and in- 

 terior sides only of the two next white: beneath, a 

 black bar: the rest, as well as the secondaries, ash 

 colour. 



The above figure was taken from a stuffed speci- 

 men in the Wycliffe Museum. 



