ENDERBURY ISLAND 
DRAFT 
o 
BIRDS 
FORMED AROUND THE. EDGE 01 THE excavated area 
Approximately 150 pairs of troricbircs nest under these ledges and in some 
places several nests are situated within a few feet o£ one another. 
A third nesting area is found in the Cordia groves at /he south end of the 
island. Here the birds nest under the fallen tree trunks And ,linger the 
lirp-r J ri nr ~rrrdth I Tfiny also jn the same arecf in "houses# 
built foa » by the guano workers in the 18 % b y/proppMg three or four 
pYUppUc U F / 
thin slabs of beach rocketo form a small shaded ned t area with one or two 
WWW * \c*<*^u**c «*“V 
entrances. A total of 20-25 pairs 
occupt mes t ^ the-©# rominiiy hhouses" 
Banding: POBSP personnel have banddd 570 ad&lts and 240 nestlings. None of 
these hag# been recovered on oth r island^/&3aep through August 1965 
{ o 
ijudri V'lYj&g*-; 
Of 246 adults } banded in July 1963 f approximately 25 percent were recaptured 
in July 1964. An additional 2' 
is were banded in July, 1964 and with the 
returns a total of 341 birds/was captured. If the Lincoln index is applicable 
* T&srfcx- 
c-f nr c iftaug s. 
then we xrould conclude that agviroxiimtely 
Wet S 
20 percent of the fete!7population band-ad. in Jaljfc 1963 &£ that 1250 birds visit 
the island in a period of one year* Since an estimated 870 breeding birds were 
present in July, 1963 and ah unknown number of birds did not breed or may net 
/ 
have been successful in nesting we believe this number is a good approximation 
of the true pc ioh. 
None of the 94 nestlings banded in July 1963 had returned to the island 
by Kay 1965, which probably indicates that young bards have a long pelagic 
their firs/ breeding season. 
period before 
