Scherer and Petry • SEASONAL VARIATION IN SHORE BIRD ABUNDANCE 
45 
2007-2009 
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70 
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Ruddy Turnstone 
111 
ONDJ FMAMJJASONDJFMAMJJAS 
2007-2009 
2007-2009 
F, G- 3. Continued. 
The frequency of occurrence of Whirabrels 
l ‘'Wnu« phaeopus) was occasional as the 
s pecies was absent in 2007/2008 and sporadic in 
-008/2009. The greatest number of individuals 
■ v *»recorded in November 2008 (n = 6) and May 
-009 i/i = 9 ) only one individual was observed 
in «»ch of two other months. Solitary Sandpipers 
'Thnga solitaria) occurred sporadically in 2007/ 
4*08 and occasionally in 2008/2009. This spe- 
c *es had no clear tendency of occurrence, but was 
2007 - 2009 
recorded in two consecutive months (Nov and 
Dec 2007) with greatest abundance (n = 18) in 
November 2007. 
The frequency of occurrence of Greater Yel- 
lowlegs (T. melanoleuca) was regular over both 
years. The greatest abundance occurred between 
May and September with a peak in July 2008 tn = 
16) and in September 2009 (n = 16). This species 
exhibited abrupt variation from one month to the 
next as observed in May. June, and July 2008 w ith 
