were counted, and the island population was placed at 50 birds. In March 
1965 the survey found 25 adults on the island. The following July the Island 
population was estimated at 1000 adults and 200 nestlings. 
* 
Reproduct ion ; One egg was found in March 19 65, but none were found in March 
1961 (Woodside and Kramer, on. cit . ), March I965, or March 1964. Ten eggs 
were found in August 1964, when an estimated 140 nestlings Q f several 
age groups were found. Most were found primarily 
under the Scaevola growth at the perimeter of the island. The following 
month only five immatures were found. In July 1965 there were .approximately 
200 nestlings present, ranging in age from hatchlings to nearly fledged. 
Most eggs found were in an advanced stage of incubation. 
t 
Egg-laying begins in late February and March on Kure Atoll, 300 miles 
to the northwest. Hatching begins in March and continues through July on 
Kure, and a few immatures remain on the atoll through November. The cycle 
on Lisianski is probably similar. 
Other Specimens : USNM 191499 > no Sex or date; USNM 3 OO 983 , cf, 17 May 1923* 
Blue-faced Booby ( Sula dactylatra ) 
* 
Current Status : Probably resident, breeding annually. 
Prior Records : Isenbeck found the species rather common on Lisianski<in 
March 1828 (Kittlitz, oj>. cit.). He found them nesting in open scrapes on 
the beach, with eggs in the early stages of incubation. Palmer and Munro 
found the species with large nestlings in late June 1891 (Munro, oj>. cit . ). 
Many were seen by Bailey (1956) in March 1913* Munter (op . cit .) found this 
booby in fairly large numbers on Lisianski in March 1915* Some were nesting 
near the frigate rookeries, but most nested along the beaches just above the 
