nest checks; 

 checks may h 

 efforts were 

 that late da 

 (see discuss 

 more field w 

 those sectio 

 from Sunday 



Island 

 nests by one 

 those island 

 Larger islan 

 only when th 

 nearby. Mos 

 also searche 



Both ph. 

 measured. B 

 widths and 1 

 nest. Dista 

 nylon rope, 

 stadia rod. 

 rocks and si 

 presence of 

 to be bare a 

 the nest was 

 island, peni: 

 tree, or at . 

 nest for a n 

 season. The' 

 of cover at i 



Density 

 a cover boan 

 Wight (1938) 

 (50 feet) fn 

 first positii 

 values thus t 

 each nest as 



Open side 

 90° Counterc 

 180° Counter. 

 2700 Counter 



