birds 
Shi •; U. hi ID Ui w . 
TU, ' TP m O 
UiUii i r 
TTA 
MAillTl Model Tern (An 
«-* '*• - - 
n 1 a 
’U*. vr 
fuirent ^t.-tus: Gor.non visitor nesting in very small numbers, i i FI i 'I 1 n ITT ye] 
r opn 1 " + ;• nn lh.ximum FOBSP estimates of population; AGCO February, 1961, 
"\ 
Minimum POBSP population estimates: 500 in July^ i94A 1963* 
Prior Records: Donaghho (1952) found several nests in July 1938 in the Cordia 
W 
grove at the south end of the island j <e of t^se 
contained a small chick 
^ r; ^ 'V 
and th e ..o:LhnSda ,iV r 
I-opulr.tioi.: The number of birds present Jksb usually b@erfestiRE.ted at between 
500 and 1500 (See appendix A)/ but MjOOO mere present in February 1965* A large 
proportion of birds present on each visits**© are probably birds from other 
islands since the breeding population has only once exceeded five percent of 
the total population (6% in November, 1961) and on all other visits has been 
le s than 2>% 
Annual %cle: Better than 95m of all active nests have been found in the months 
of November and February which suggests that the Hawaiian N Q ddy has a winter 
breeding season on Enderbury similar to that found on Hull Island (POBSP field notes) 
Very few nests have been found ® any visit,.ancL-i 
The interval between POBSP visits has been lengthy enought so that some 
nesting cycles may have been initiated and completed without our having been 
aware of them. As a result nest counts taken m POBSP trips may be misleading, 
in that they indicate a smaller number of nesting birds than iefactually 
However the number of old nests present in the colony is always small and it 
« 
we believe t h: .t there have been very few such umieb.t.erS nee tin r , mmi 
• . 
d -1 r ~-i. A. - - '-A. 
-- ' 
. 
1 
-V - 
. 
' Up: -- S - ; 
. ' A V- r : ' ' --- - 
AM. *’ mkFr 
Table 
. : .= W1 ■ 
- 
Hawaiian Noddy nest counts on En erbury Island. 
! 
I 
