• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 1994 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
White-headed Duck Oxyura leucocephala	EN	winter	1988	173 individuals	A1, A4i, B1i, B2
Greylag Goose Anser anser	LC	winter	1977-1992	950-7,859 individuals	A4i, B1i
Lesser White-fronted Goose Anser erythropus	VU	winter	1975	21-37 individuals	A1
Common Shelduck Tadorna tadorna	LC	winter	1977-1992	400-1,388 individuals	A4i, B1i
Ruddy Shelduck Tadorna ferruginea	LC	winter	1977-1992	26-750 individuals	A4i, B1i
Marbled Duck Marmaronetta angustirostris	NT	breeding	1974	15-20 breeding pairs	A1, A4i, B1i, B2
Marbled Duck Marmaronetta angustirostris	NT	winter	1977	1,000 individuals	A1, A4i, B1i
Gadwall Mareca strepera	LC	winter	1977-1992	350-1,915 individuals	A4i, B1i
Eurasian Wigeon Mareca penelope	LC	winter	1977-1992	2,300-8,070 individuals	A4i, B1i
Mallard Anas platyrhynchos	LC	winter	1977-1992	1,260-8,000 individuals	A4i, B1i
Northern Pintail Anas acuta	LC	winter	1977-1992	3,750-12,000 individuals	A4i, B1i
Eurasian Spoonbill Platalea leucorodia	LC	winter	1970-1977	278 individuals	B1i
Grey Heron Ardea cinerea	LC	winter	1970-1977	582 individuals	B1i
Great White Egret Ardea alba	LC	winter	1970-1977	351 individuals	B1i
Great Cormorant Phalacrocorax carbo	LC	winter	1970-1977	3,060 individuals	A4i, B1i
Pied Avocet Recurvirostra avosetta	LC	winter	1970-1977	300 individuals	A4i, B1i
Black-tailed Godwit Limosa limosa	NT	winter	1970-1977	250 individuals	B1i
Caspian Gull Larus cachinnans	LC	winter	1987-1992	2,500 individuals	B1i
Little Tern Sternula albifrons	LC	breeding	1977	40 breeding pairs	B1i
A4iii Species group - waterbirds	n/a	winter	1977	20,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (1994) may differ.

Year	Protected Area	Designation	% overlap with IBA
1976	Heleh	Protected Area	100

Habitat1	Habitat detail	% of IBA
Desert		16
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Marine Neritic		minor (<10)

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	100

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Hilleh Protected Area (Iran, Islamic Republic of). Downloaded from https://datazone.birdlife.org/site/factsheet/hilleh-protected-area-iba-iran-islamic-republic-of on 22/11/2024.