ORNITHOLOGICAL REPORT FOR NORFOLK. 



181 



30th. — A cock Pheasant f weighing 5 lb. shot at East Walton 

 (Birkbeck). 



Migratory Gulls coming Inland. 



In October and November the farmers round Norwich are 

 fond of manuring their fields with what are sold as " gyps," 

 i. e., the gills and insides of Herrings. As eight hundred and 

 twenty-four million (824,000,000) Herrings were brought into 

 Great Yarmouth this autumn, "gyps " were cheap. Unless this 

 unsavoury garbage is ploughed in quickly it becomes a great 

 attraction not only to the Black-headed Gulls, but to the larger 

 species too, which somehow find it out, and come inland in large 

 numbers, so that it is not unusual to see two hundred Gulls on 

 a single field, and that even in mild weather, when there ought 

 to be no shortness of other food. Whether these Gulls are to 

 be regarded as migrants or as partial residents is hard to say. 



In this connection reference may be made to the Report 

 recently issued by the Suffolk and Essex Fishery Board on the 

 food of Gulls, and since brought before the Norwich Museum 

 Association, in which the following analysis of a number of 

 dissections is given. 



Contents other than Fish found in Black-headed, Common, and 

 Herring Gulls. 





Black-headed 

 Gull. 



Common 

 Gull. 



Herring 

 Gull. 





Per cent. 



28 



13-5 



14-5 



27-0 

 7-6 

 6-7 



4-8 

 8-5 

 7-7 



18-3 

 3-8 

 9-6 

 5-7 

 3-8 

 2-9 

 3-8 



Per cent. 



24-5 



17-5 



7-0 



14-6 

 2-4 

 3-7 

 3-7 

 2-4 

 7-3 



18-5 

 •0 



1-2 

 11-0 



8-5 

 11-0 

 13-4 



Per cent. 

 18-2 



Marine Food other than Fish. 



Shrimps (Pandalus and C. vulgaris) .... 

 Lugworms (Arenicola marina) 



10-4 

 7-8 



5-2 





7-8 

 2-6 



Echinoderms — 



Starfish, Brittle Stars, Sea Urchins 



Land Food. 



16-9 



18-2 

 10-4 



6-5 



•0 



1-3 





1-3 





1-3 





19-5 





11-7 







