Annotated List 
LISIANSKI 
RED-FOOTED BOOBY 
iM 22 — Mar.20-21 , '68 (RBC Rept. ) 
Red-footed Booby Estimated population --‘ c. 250 
Sample nest count results: 
# of nests counted- 16 
# of empty nests' ——----- 11(69/0 
■ # of nests with'-egg---- 5(31*) 
§ of nests with young--- none 
/ t j 1 , ■ v i . • . 
Although just beginning to nest, the breeding cycle of the Lisianski 
. I .. I P, n» 'I'| T ' 'TL1 - . 
Red-footed Boobies was decidedly in advance of that of the population 
on Laysan (where only 1 nest in 8 contained an egg and where considerably 
more effort was expended in searching for nests•) Probably not less than 
75-100 nests were present on Lisianski. , 
It is of interest to note that an almost identical difference in the 
cycles on the two islands was noted by Hackman last year when he visited 
the two islands On the same days of the month that I visited them this 
year. Hackman found that 18 of 85 (21 percent) nests checked on Lisianski 
had eggs but found no nests with eggs on Laysan although some as-yet empty 
nests were present. 
As on Laysan and Nihoa the Red-footed Booby nests appeared to be much 
more scattered and less often found in clumps than .were those of the Great 
Frigatebirds. The only area where there appeared to be somewhat of a 
concentration was in the higher Scaevola of the northeast corner of the 
island. 
