GREAT PR1GATEBIRD --- Annotated List 
LS# 22 --- Mar. 20-21 '68 (RBC Eept. ) 
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LISIMSKI 
I . A i • 
Great Frigatebird 
The nesting cycle of Lisianski Great Frigatebirds did not appear to 
be significantly different from that on Laysan. Many birds were courting 
and many were nest-building. Ten eggs checked for stage of incubation by 
candling were fresh or very slightly incubated. I suspect that not less 
than several hundred active nests were present but this figure may well 
be erroneously low since coverage of the interior of the island was scanty. 
As on Laysan a number of immature birds were present, most of them 
flying, but a few still on the nest and apparently still being fed by 
their parents. 
-t——-—_ - 
Estimated population -—- c. 1000 
Sample nest count results; 
# of nests counted --—— 36 
# of empty nests->-•-— 23(64-$) 
of nests with egg 13(36$) 
of nests with small young -- none 
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