Lisianski 
4 
BLUE-FACED BOOBY 
LS 17 October 18-20 ’66 
birds-annotated list 
(KB Rept cont); inter-island recaptures, six are re¬ 
corded as being from Laysan, but there is possibly 
some error in the record, as 3 of them were recorded 
as being banded as Laysan Albatross locals in July 
1965 . The other 3 are almost consecutive, which seems too 
coincidental. It is interesting to note that consecutive- 
banded birds are often recaptured consecutively, indicat¬ 
ing a consistent association of those birds. One adult 
female dies after being blood sampled. 
is# 18 March 20,1967 
(CDH Rept, notes) 
Population estimate -- 
Nests 
Nests 
- 300 + (adullti 
64 
4 
The only large nestlings (found on LS$- 18) were found on Lisianski where there 
were four small downy chicks (ca. 1-1 '2 weeks) and 1 large (bandable) downy 
nestling as well as three naked chicks and one pipped egg among the 64 nests 
observed. 
LS$ 19 June 2-6,1967 (DLS Rept) Population estimate —-- 1,000 adults 
Number of nests- 165 
Blue-faced Boobies were distributed around the beach except for one area on the 
east beach where steep beaches and non-windy areas were found. We counted 165 
nests on our nesting survey 1 with 1 egg, 31 with 2 eggs, 28 with small downy 
chicks, 52 with medium downy chicks and 53 with large downy chicks. No nests 
were found except around the beach. There were nests behind the beach front 
but none in the center of the island. Over 300 roosting birds were found at the 
south end of the island and a club of 100 was found at the northwest end of 
the island. Scattered roosters were found around the island, except along the 
east beach. There were over 1, 000 adults using the island during our stay. 
(FCT) Total population estimated: 400. 200 breeders. 20% on eggs, 20 % SDC, 
20 % MDC, 30% LDC. The Blue-faced Boobies were restricted to the shoreline 
as on Pearl and Hermes Reef. All stages of the breeding cycle were found. On 
the night of 2 June one large dub of 100+ birds was found on the north shore. 
