SNDERHJRY 
DRAFT 2 
birds 
Reproduction; All Gray-backed Tern nests found by the POBSP 
h around the 
viax lagoon Oj. on the small islircis in the lagoon* During peak laying periods 
colonies- are located primarily around the lagoon while in other periods 
Iteo ‘ ,s - are found only on island;, in the lagoon. During November 1963 sllti 
oacaea i/e.ns roosted only on tne salt pan in the central lagoon, but since 
U;1 ■' - ou. sir us nave roosted at a number of locations in the interior of 
the island. 
Other Specimens: U3KM 358150, F, lay 19, 1939, L.P. Schultz. 
£2SS P Spec imens^ USNK 495528, M, testes 10x7 mm., 112 gms., lay 31, 1965* 
U3NM 495529, F, largest ovum 5 mm.,, 123 gms., lay 31, 1965; USNM 495530, 
F, ovary 10x5 ran., 123 gms.. May 31, 1965. 
