ENDERBURY 
DRAFT 2 
■» 
birds 
Noddy Tern ( Anous stolidus ) 
Current Status :Common resident, breeds in small numbers, Maximum POBSP 
population estimate; 500 in lay, 1965#* Minimum POBSP population estimate; 
150 in November, 1964. 
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Pri or Records: The U.S. Exploring Expedition (lass in, 185$) found N<M4«« To rip 
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n' j u tu An gf^j ftril'urabd'f^ jhi fin rf -~y on January 9* 1841 and Peale 1 s journal 
states the single egg was laid dii ectly on the ground , usually under 
the edge 01 a rock or bunch of grass. 
(MS 1938) 
Kinney band d 200 on April 15* 1939 but neit ar or 
seeing jyudtiv 
Bonaghho (1950) reported^ th#fri in July, 1938. 
Papulation: The Noddy Tern population has fluctuated less than any other species 
breeding on Enderbury. On most visits between 200 and 300 birds have been present. 
The breeding population is never large during any one visit and has ranged from 
about 5% to 45/? of the total population. No-eyoie-eaH-be-ele^ $tuaCT*?r $n most- 
trips only about 5~10% have been breeding. 
Annual Cpcle : No cycle can be derived from our data * "la ne thi 
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TsnS'ition of the±ago6rT'8UiTacTe 
It is evid ent hauevep that some nesting occurs in every month of the year. 
Reproduction:A ll nests found by the POBSP were loote d on small Islets In the 
1 v 3 «MmT«vm y > | 
lagoon and 11 the—fe*ds roost in this area. *Ttre Wests were io\mrr on both vegetated 
ch 
islets and single rocks projecting above tae sur face of the lagoon. Nest density 
’ F - - - h 
is ver^ low and many seemingly suitable Islands are not used for nesting. It 
maybe that -this use :f lagoon islfets is in response to cat predation .as a similar 
situation on Bakery seem clearly related to this factor(Clapp and Sibley, in prejL) 
Banding: Through June,1965 POBSP personnel had banded 15 adults and 22 nestlings* 
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POBSP So : ci an: 2 
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