1 0000 -i 



u 



-i 

 < 

 o 

 CO 



o 



I 

 I 



a. 



< 



O 



J 



(0 



cc 



< 



a. 



u. 

 O 



DC 

 LU 

 CO 



5 

 3 



1000 - 



100 - 



1900 



1980 



Figure 14-1. Trends in populations of nesting herring gull, eider, black 

 guillemot, and puffin in Maine since 1900 (adapted from Drury 

 1973 and Korschgen 1979). 



10000 -a 



...• li""-*"*:.— — ^ ARCTIC TERN 



-J 

 < 



o 

 CO 



o 



s 



X 



£ 



< 

 u 

 o 



CO 



oc 

 < 



Q. 

 LL 

 O 

 CC 

 LU 

 00 



S 

 3 



1000- 



100 - 



COMMON TERN 



DOUBLE-CRESTED CORMORANT 



GREAT BLACK-BACKED GULL 



RAZORBILL 



1900 



1910 



-~i r 1 1 — ~\ 1 1 



1920 1930 1940 1950 1960 1970 1980 



Figure 14-2. 



YEAR 



Trends in populations of nesting great black-backed gull, 



double-crested cormorant, arctic and common tern, and 



razorbill auk in Maine since 1900 (adapted from Drury 1973 



and Korschgen 1979). 



14-11 



10-80 



