V 
A 
BLUE-FACED BOOBY 
Annotated List -WIHOA 
Dec. 9-16, 1961 
(Kramer) 
Very abundant and by far the most common of the 3 species. 
Paired up and from actions appeared to be starting to breed, 
June 10, 1962 
(Kramer & B) With large downy young 
March 6-7, 196^ Population estimate-100 Remarks: 90 % with eggs 
(Amerson, POBSP) Wo. of nests -40 
Wo. cf young-none 
Wo. banded by S.I. - 6 
(Walker) _ West building to two eggs (90$), no chicks. ... Chased Blue-faced 
Booby which regurgitated a ten inch flying fish. 
July 26, 19§k 
(Kridler) _ [Blue-faced Boobies were nesting] on the plateau near Miller Peak. 
• • • I noticed also that Blue-faced Boobies seemed to prefer open 
areas for nest sites. The more rocky areas of the ridges as well 
as the top of the ridge which separates Miller Peak from Tanager Peak seemed to be 
preferred. 
.Sept ’ "23 ■ 196k ’ “ 
(Fleet 9 POBSP) Counted : 26 adults and iJ immatures. 
Estimated total population-; 50 
(Kridler) Field notes only indicate that they stumbled into nets set for 
Miller-birds* 
March 13-1^1965 Estimated island total population-300 
(Banko, POBSP) Breeding : Eggs but no young seen. 
Banded-: Bone 
{Kridler) Estimated 150 nests with a population of approximately 300 birds. 
Bo young were found. All the nests contained eggs. These birds 
prefer the open ridges and the top of the peaks as nesting sites. They do not flush 
as readily as the Ped-footed. About ^0-50 nests were located just north of Miller 
Peak on Miller Plateau. 
July 28- Estimated number-125 + ±of 0 
August 1, 1966 Bo.of nests 2 + 50^ 
(Heiden ? POBSP) Bo.of young ----- 39 
Age of young-11-20 days-- 50 $ 
" ' - 21+ days -— 50 fo 
Banded- none 
Population in breeding status. Observed only on peripheral (above 
the water) ridges and peaks, never on interior ridges or slopes. Largest 
concentration observed on plateau at Miller's Peak, and ridge area 
along northern rim of island. The plateau colony yielded 2 nests (one 
egg and two eggs respectively, all well-developed), 1$ nestlings 10-21 
days old, 17 immatures and 32 adults. Five adults and 7 immatures were 
observed on northern rim between Miller's and Tanager Peaks. Total 
adult population estimate for the island is 123. 
