t 
v RED FOOTED BOOBY--Annotated List p.3-----L1SIAESKI 
" 1 ) 
LSfi 17 cont. Although 3/5 of the birds recaptured were sub-adults, the actual 
ratio, of sub-adult to adult birds was more like 1 : 15 , as indicated by 
our banding records. Bine birds were banded as locals and several others 
as immatures. Bo new nests or eggs were seen, J i 
Apparently very few Red-footed Boobies have been banded on 
Lisianski «s the greater majority of tl^e recaptures were made of inter¬ 
island birds. Six birds were originally banded on Lisianski in June 
of 1966 , while 8, 9? and 9- were banded on Laysan, Sand-Johnston, and 
French Frigate Shoals respectively;, One of the French'Frigate Shoals birds 
was a sub-adult banded in June, 1966 , and then went to ~and-Johnston 
to get an orange streamer before turning up on Lisianski. Another F.F. S f , 
sub-adult banded in August 1 965 was also orange streamered. 
i 
LQ^ lP Mar. 3j)-20, *67 (CDH Rept)---Estimated population: 130+ ad. 
Bests/eggs (counted): 18 
(CDH notes)- All nests were in Scaevola from 1 to 5 l/2 
feet high. Constructions .was primarily of Tribulus with small amounts of 
Scaevola and Boerhaavia. Checked out 85 nests, all newly constructed and 
all with sprigs of ffesh vegetation. Only 18 had eggs. (l8 egg measurements) 
About 130 birds present on the entire island most * with nests. 
_____ _ __ 1 . 
LSff 19 June 2-6, *67 (DLS Rept) Estimated population-* 3? 000 j 
Rumber of nests --—- 5l6 
Egg measurements ----- 35 
This species nestp on Scaevola, with a nesting concentration at the north¬ 
east corner of the island. A nesting association and nest-description 
study was conducted by D. Burckhalter and will be presented in a special 
report. We counted 518 nests on our survey; 236 nests with one egg, j 
88 with naked chicks, 73 small downy chicks, 67 medium downy chicks, 
and 52 large downy chicks. 1 
(FCT) Total population estimate: 1,000 . Count 516 (nests). Jfotieeafele 
The Red-footed Boobies were noted in the Scaevola belt, with all stages of the 
cycle present; a few subadults and immatures were noted to roost at night. 
The north end of the island seemed to hold the concentrations of this species. 
