GREAT FBIGATEBIBD 
Annotated List — p.2 
LISXANSKI 
7 Mar. 12-14, \65 (¥0¥ Kept) Estimated population- 2,000-3,000 
. Nests with eggs -- 300-400 
Berlese samples —--— 5 
Hood samples- 20 
Banded. --—--- None 
Bet urns- 1 
Nesting and roosting widely scatterred both resting and nesting on Scaevola 
busnes. Perhaps 2000—3®^^ adults with 300—400 nests with eggs were present. 
(BBC summ) -2,000-3,000. Small colonies occurred in almost all 
small groups of Scaevola . Most of the birds were on eggs and three checked . 
by tayself were fresh. Apparently they are at about the pea^ of laying. 
On the l4th I checked about 35 nests between about 1100 and 1235 to determine 
contents and sex incubating. See under daily notes. 
A number of masked boobie^ were seen being chased by frigates which 
several times drove the boobies down to the surface of the water. In the 
five instances which I noted it was an adult female fr^gte that was doing 
the chasing. Wirtx reported another instance in which a female was chasing 
and annoying a masked booby. No males were seen chasing boobies. 
---—(BBC- Mar. 14 - Status of Great Frigate nests ) —--- 
Time 
Sex 
Contents 
Time 
Sex 
Contents 
Time 
Sex Contents 
1115 
male 
empty 
ru 5 
male 
egg 
1115 
male 
egg 
1116 
male 
empty* 
1116 
female 
egg 
•1116 
male 
empty ** 
1117 
male 
egg 
1117 
male, fern, empty* 1 11 Q 
female 
egg 
1120 
male 
empty 
1120 
male 
egg 
1120 
male 
egg 
1129 
female 
egg 
1226 
female 
egg 
1227 
female 
empty 
1227 
male 
? 
# 
1228 
male 
egg 
1229 
female 
egg 
1230 
female 
empty [*male displaying; *-%Lale 
with breast light 
mottled brown. [ 
From this limited survey it would seem that the Great Frigates on the 
island at this time are just about 2/3 through their laying period although 
the sample is small. There seems to be no difference in which sex sits 
from this but further observation is needed. One firgate egg which was 
broken to check state of incubation was completely fresh. 
Of 13 other Great Frigate nests checked between 1231 and 1239, all 
contained 1 egg and 5 of 13 birds sitting were male. 
(DBS summ) There were about the same number of frigates as refoots. 
About l/2 the adults (* adult males ?) with the Inflated pouches and the 
other half of the males were sitting on nests or the color of their pouches 
was not bright red. Estimated population of 2, 000 
Lfiff 9 July 14-17, 1 65 (ESC Bept) Estimated population 1,000 adults 
200' immature^ 
400 nestlings 
Blood samples y 
As common as on Laysan. There was a tendency for nesting congregations but 
nests were found over most of the Scaevola area. All nests contianed young 
from newly-hatched chicks to fully feathered individuals. Immatures on the 
wing were common 
