Maximum c ounts . --SPRING: 939 (900 in one flock) in 8 h, 65-115 km E Ocean 

 City, 9 Kay 1P76. FALL: 12 in 8 h, 76-116 km ESE Ocean City, 26 September 

 1976. 



Remarks . --On 9 May 1976, 900 northern phalaropes and 1,000 Wilson's storm 

 petrels attended a cetacean concentration, which included 30 fin whales and 

 300 saddleback dolphins ( Delphinus d elphis ), 94 km E Ocean City (38°15'N, 

 74°0rw). The phalaropes and storm petrels concentrated on each new slick and 

 swirl left by submerging whales. 



Departures in fall are probably completed by mid-October (Robbins and 

 Bystrak 1977). 



E 

 o 



■*-• 



«3 



1000-1 



500- 



100- 



40 



30 



20-1 

 10 

 



<.l 



I 



X X 

 X X 



X 



— I 1 \ 1 1 1 1 — 



JFMAMJJA 



month 



— I — I — I — 



S O N D 



137 



118 



111 



95 



77 



54 



19 







CO 



^-» 

 O) 



E 

 o 



I =0.1-1.0 I =1.1-10 ■ =11-100 



MEAN NUMBER OF INDIVIDUALS OBSERVED PER HOUR 

 X = ZONE NOT SAMPLED IN THIS MONTH 



Figure 16. Seasonal abundance and seaward distribution patterns of the north- 

 ern phalarope in the northern Chesapeake Bight, 1971-1977. 



PARASITIC JAEGER ( Stercorarius parasiticus ) 



Status. --Uncommon spring and fall transient. A few, presumably non- 

 breeders, may be seen during the summer (Fig. 17). 



Earliest record .— SPRING: 23 April 1977. FALL: 11 August 1975. 



L atest record . --SPRING: 16 May 1977. FALL: 6 December 1975. 



Maximum counts. --SPRING: 2 in 2 h, 2-20 km E Ocean City, 23 April 1977; 

 2 in 2 h, 9 km E Ocean City, 14 Kay 1972. FALL: flock of 5, 28 km E Rehoboth 

 Beach, Delaware, 11 August 1974; 5 in 1 h, 70 km E Ocean City, 3 September 

 1976; 4 in 6 h, 40-80 km E Ocean City, 23 November 1974; 3 in 1.5 h, 10-15 km 

 E Ocean City, 4 December 1976. 



25 



