Earliest winter r ecord . --23 November 1974. 



Latest winter record . --30 April 1977. 



Maximum counts . --3 among a flock of herring gulls, 81 km ENE Ocean City 

 (38°31'N, 74°09'W), 16 March 1975; 3 in 4 h, 2-92 km ENE Ocean City, 5 March 

 1977. 



Remarks .— All glaucous gulls observed were immatures. They were seen in 

 small numbers among the hundreds of herring gulls that either gathered around 

 fishing vessels or chum. 



E 

 o 



1000-1 



500- 



100- 



40- 



30- 



20- 



10- 



0- 



xxxxxxxx 



X 

 X 



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i 



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X 



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1 1 — ■— T 1 1 1 1 1 I I I 



JFMAMJJASOND 



month 



1=0.1-1.0 



MEAN NUMBER OF INDIVIDUALS OBSERVED PER HOUR 

 X - ZONE NOT SAMPLED IN THIS MONTH 



Figure 21. Seasonal abundance and seaward distribution patterns of the 

 glaucous gull in the northern Chesapeake Bight, 1971-1977. 



ICELAND GULL (Larus qiaucoides ) 



Status . --Rare winter and early spring visitant over all zones of the 

 Continental Shelf (Fig. 22). 



Earliest winter r ecord . --3 December 1977. 



Latest winter record . --30 April 1977. 



Maximum counts . --3-5 among a flock of herring gulls, 40 km SE Ocean City, 

 5 February 1977; 3 in 5 h, 40-115 km SES Ocean City, 7 March 1976. 



Remarks . --All sightings were among flocks of herring gulls gathered 

 around fishing vessels or chum. Only 2 of the 22-24 seen were adults; most of 

 the others were in first winter plumage. 



31 



