Colony Location: Helen Island | Pacific Environment Data Portal

Colony Name

Helen Island

Atoll

Helen Island

EEZ

Palau EEZ

Coordinates

2° 58.683' N, 131° 48.783' E

Species	Period	Count	Derivation	Breeding Status	Data Source	Data Quality
Greater crested Tern Thalasseus bergii (Laridae)	2005	5000 Individuals		Confirmed	Knecht (2005)	Good
Sooty Tern Onychoprion fuscatus (Laridae)	2005	2500 Individuals		Confirmed	Knecht (2005)	Good
Black Noddy Anous minutus (Laridae)	2004	25000 Individuals		Confirmed	Helen Reef Project & Palau Conservation Society (2004)	Good
Greater crested Tern Thalasseus bergii (Laridae)	1992	(Present)		Confirmed	Kepler (1992)	Good
Sooty Tern Onychoprion fuscatus (Laridae)	1992	(Present)		Confirmed	Kepler (1992)	Good
Greater crested Tern Thalasseus bergii (Laridae)	1979	440 Individuals		Confirmed	King et al (1980)	Good
Sooty Tern Onychoprion fuscatus (Laridae)	1979	82000 Individuals		Confirmed	King et al (1980)	Good
Black Noddy Anous minutus (Laridae)	1979	3000-4000 Individuals		Confirmed	Engbring (1983)	Good
Black-naped Tern Sterna sumatrana (Laridae)	1979	200-500 Individuals		Confirmed	Engbring (1983)	Good
Brown Booby Sula leucogaster (Sulidae)	1979	500-1000 Individuals		Confirmed	Engbring (1983)	Good
Common White Tern Gygis alba (Laridae)	1979	20-50 Individuals		Confirmed	Engbring (1983)	Good
Greater crested Tern Thalasseus bergii (Laridae)	1979	5000-7000 Individuals		Confirmed	Engbring (1983)	Good
Lesser Frigatebird Fregata ariel (Fregatidae)	1979	(Unknown)		Probable	Engbring (1983)	Good
Red-footed Booby Sula sula (Sulidae)	1979	2000-3000 Individuals		Confirmed	Engbring (1983)	Good
Greater crested Tern Thalasseus bergii (Laridae)	1977	2000-3000 Individuals		Confirmed	Engbring (1983)	Good