FED ER Hi BY 
■) A Trim 
; iaJr ! 
birds 
Sooty Tern ( Sterna fuscata ) 
Current Status : A periodically abundant breeding species. laximum POBSP population 
estimate; 50,000 in July, 1964. Ilininrum POBSP population estimate; 2000 in July* 
Prior r eco rds: Donaghho (1952) s^etBs iirt several colonies of Sooty Terns were 
present on July 26, 1938. Munro (M.3. 1938) who was visited Lntierbur/ wit!; 
gnho stated that breeding was in all stages from ergs to nearly fledged 
young and that they were present in immense numbers. A number of specimens 
CP s 
collec by J.G. Correia on March IS and 19 , .1924 wi**tST^-was -with- 
Wlw t.na — avgf - fe i p .o il o V^ve^ uoev-e, ^vesevvT ".vs -»&e «v\;\V,‘ows'’ ^Cow«!a.- *».«>«£ 
In April 1939 James : 
~~———— 4 —rA -ily vuQ.:t:(. in-t r s 
-fj =— _ur x w j. t W' ,l JL.J. l lj '© (TU U UT C « 
y. banded 800 and when L.P. Schultz visited the island 
v m 
heir breeding status 
f but did not report 
ar he Sound them, very abundant (Schultz/^19507g 
Population: The population fluctuates greatly with the largest number present 
n present on Enderbury during 
trips and birds have been found on the ground during each visit♦ 
curing 
eaing activity, oooty Terns have be 
all seven F( 
on 4- 
Table 
hi e 
3 
gives the population estimates made during each visit 
Sooty Tern Populations on Ende.bury Island 
1963 
1964 
1965 
February 
Pay 
o 
(C 
J uly Nov ember 
4000 (not nesting) 3*000 (not nesting) 
10,000 (not nesting) 50,000 (nesting) 10,000 (post nesting) 
pre 
83 ; 0u0 (n^ a ting j n-0 , 000 -r- -8 —0e. » t—n e st mg ) —..a— 
Breeding st tus is given in parentheses following the polpulation 
estim .1 e. 
Banaing indie it es subpopulations and that the total population of Sooty 
Terns using 'he island is of the order of 150,000 birds. 
A nnual Cycle: During the first three POBSP visits to Enderbury no birds 
sting actual 
Vi Sri ts bird 
V\T 1 +• 
UULi 
one injured nestI 
0 
.mg 
—v 
i V 
V 
occurred in early 
1 QAg 
ere 
ob s er-ved rcosting 
xf 1 
d 0 
iiv 1Q40 
V', _ • 1 rs 
b ux’ing e ao n of 
- -1 o v- 
XlL ctl. 
i p ]“(TP 
ip os inai ca t ed s ome 
thi 
o o- OUpS . 
4 . 1 ., 
U x i 
■'i ~ 4 - U xii'i 
- a_L Ui i at; i X 
