GREAT ERIGATEBXRD 
Annotated List —- p.k. 
LISXARSKI 
J 
LS^ 1@ Mar, ? 67 (CDH Kept) Population Estimate --- 800+ adults 
300 imm, 
200 + nestjs 
(CDH notes) All nests in Scaevola I5 ?f to 3^ ?f high* 
Lest diameter 12 n - l 8 n . Construction almost exclusively of Tribulus 
with occasional pieces of Portulaca and Boerhaavia. 20 eggs measured 
Data on sex incubating and condition of eggs checked by candling. Results 
Sex Incubating Condition,of Egg 
Sex I ncubating Cond i tion of Egg 
male 
fresh 
male 
opaque 
female 
fresh 
male 
opague 
female 
fresh 
male 
- - - - - 
female 
- -- 
female \ 
- fresh 
male 
fresh 
male 
opaque 
male 
fesh 
male 
fresh 
male 
fresh 
male 
opaque 
male 
frfsh 
female 
fresh 
female, j 
opaque v 
male 
fresh 
999 
• • • 
fresh ! 
999 
• • • 
opaque 
About 300 flying immatures seen near the south end of the island and a few 
in the interior perched on Scaevola. A large number of nest males were 
displaying on empty nest a of new construction. Og oO nests chekced only, 
20 contained an egg., : Of 18 nests where the sex of the incubating bird 
could be determined 12- were males. Thriteen of 18 eggs that were 
checked were\fresh. , — Total nests about 200-250 on the entire island 
on the basis ofi an incomplete survey. Rests ranged in height from 1 foot 
to 3 feet. 
LS# 19 June 2-6, *67 (DLS Rept) 
Population estimate 
Dumber of nests 
Egg measurements —* 
2 ? 000 adult s 
500 
35 
Resting was entirely in Scaevola with the nesting concentration around 
the northeast corner of the island. We, counted V 73 nests on the purvey; 
237 contained eggs, 27 naked chicks, 93 small downy chicks, 88 medium 
^owny clicks and 28 large downy chicks. Dave Burchhalter conducted a 
study on nesting material, used, height off the grouiid, and age of the 
chick; this data will br presented in a special report. I would estimate 
there were at least 2,000 adults using the island during our stay. 
(FCT) Total population estiate : 600. Count of nests. These birds 
were all found nesting in the Scaevola bushes; only a few subadults 
were noted. 
