ENDERBURY 
birds 
Dill; I “ 
-.or- : 
Egg laying begins in 1-Iarch and the first nestlings probably hatch about late 
April or early May. Host egg lay! g probably terminates in July with young 
fledgine about January* Some immature birds are a till present in February and 
March, but thevare relatively few in comparison *4?ith the total number ox birds 
fledged 
The peak of egg laying was probably later in 1963 than in 196 4 and 1965 
since a much higher proportion of the neats contained eggs in the former y 
O a 
( 74 $) then in the later two years (20$ and 50$ respectively). Judging from the 
size of the young on both November visits some egg laying must have occureed 
in. August* 
Reproduction : In 1963 and 1964 there were large colonies along the edge of 
4 - 
U 
he lagoon just inland from the lighthouse and colonists' buildings. In 
1964 there was a second colony between the "frigate colony" and the lagoon 
and in 1965 this was the onl site occupied. In the colony near the lighthouse 
& Lesser Frigatebirds built either very small nests less than six inches off th 
3 -round or built no nest at all. In the latter instances, which were not at all 
uncommon, the egg was deposited on a small circular are of bare ground. In 
1964* however, seferal hundred Lesser Frigateirds nested in the same 
Tournefortia 4^-ee^ grove as the C-re. t Frigatebirds and built nests which were 
almost as large and bulky as those of that s ;ecies* These nests -were on the 
periphery of the 11 frigate colony" and not as far above the ground as the 
A average Great Frigatebir nests 
y 
Sanding: 89 adults and 2148 nestlings have been banded by POBSP personne. 
- “■» a 
nestlings 
v_ ? 
through June, 1965# Five of th --- been retaken in the -western Pacific a; 
follows: 
Date Banded 
11-17-63 
11-11-64 
11-11-64 
Date Retaken 
04*“ 14“ 64 
07-10-65 
07-13-65 
11-11-64 
07-28- 6 5 
11-10-64 
07-29-65 
Location 
Bayugan I., agusan, Philippines 
1 apua .ana new u 
ea 
Lomonon Palomopon, Leyte, Philippines. 
Sovetskaya Gavan, Khabarovsk Region, USSR 
liadtidejos, Cebu, Philippines 
Other Specimens: USNM 358132 
L.P. Schultz, Kay 15 
i ope 
5 -- / 
