36 BULLETIN 292, IT. S. DEPARTMENT OP AGEICULTUEE. 
HERRING GULL, Larus argentatus Pontoppidan. 
Range. — Northern Hemisphere from the Arctic islands of North 
America east to the White Sea, and south to the Caspian and Medi- 
terranean Seas, the Gulf of Mexico, and western Texas. 
© BREEDING 
O OCCURRENCE IN SUMMER 
+ WINTERING 
<► OCCURRENCE IN WINTER 
Fig. 18.— Herring gull (Larus argentatus). 
Breeding range. — The herring gull, or silvery gull as it was called 
by the early Arctic explorers, breeds far north on the western Arctic 
islands to Melville Island (Parry), Wellington Channel (McCormick), 
and King Oscar Land (Sverdrup) ; these are in latitude about 75°, 
but thence eastward the breeding range turns south, and the species 
