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The site was identified as internationally important for bird conservation in 2021 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 List	Season (year/s of estimate)	Size	IBA criteria
Brent Goose Branta bernicla	LC	winter (2012)	5,635 birds	B3a
Surf Scoter Melanitta perspicillata	LC	winter (2013)	4,572 birds	B3a
Clark's Grebe Aechmophorus clarkii	LC	- (2012)	190 birds	A4, B3a
Reddish Egret Egretta rufescens	NT	resident (2011)	476 birds	A4, B1a, B3a
Double-crested Cormorant Nannopterum auritum	LC	resident (2013)	4,210 birds	B3a
Brandt's Cormorant Urile penicillatus	LC	resident (2014)	7,000 birds	A4, B3a
Grey Plover Pluvialis squatarola	VU	non-breeding (2013)	9,797 birds	A4, B3a
Wilson's Plover Charadrius wilsonia	LC	resident (2018)	75 birds	A4, B3a
Snowy Plover Charadrius nivosus	NT	resident (2013)	783 birds	A4, B1a, B3a
Whimbrel Numenius phaeopus	LC	winter (2011)	612 birds	B3a
Long-billed Curlew Numenius americanus	LC	non-breeding (2011)	1,416 birds	A4, B3a
Marbled Godwit Limosa fedoa	VU	non-breeding (2013)	81,225 birds	A4, B3a
Red Knot Calidris canutus	NT	winter (2012)	2,860 birds	B1a, B3a
Dunlin Calidris alpina	NT	winter (2011)	11,916 birds	B3a
Western Sandpiper Calidris mauri	LC	non-breeding (2013)	103,808 birds	B3a
Short-billed Dowitcher Limnodromus griseus	VU	non-breeding (2016)	14,939 birds	A4, B3a
Red-necked Phalarope Phalaropus lobatus	LC	- (2016)	92,506 birds	A4, B3a
Willet Tringa semipalmata	LC	non-breeding (2011)	10,485 birds	A4, B3a
Black Skimmer Rynchops niger	LC	winter (2011)	336 birds	B3a
Bonaparte's Gull Larus philadelphia	LC	passage (2011)	5,000 birds	A4, B3a
Heermann's Gull Larus heermanni	NT	resident (2012)	439 birds	B1a
Least Tern Sternula antillarum	LC	breeding (2011)	220 birds	B3a
Common Gull-billed Tern Gelochelidon nilotica	LC	breeding (2011)	81 birds	B3a
Elegant Tern Thalasseus elegans	NT	non-breeding (2011)	200 birds	B1a
Royal Tern Thalasseus maximus	LC	resident (2011)	7,500 birds	A4, B3a
A4iii Species group - waterbirds	n/a	non-breeding (2011–2018)	218,892 birds	B3b

Year	Protected Area	Designation (management category)	% coverage of IBA
1988	El Vizcaíno	Reserva de la Biosfera (Ia)	85
1993	El Vizcaíno	UNESCO-MAB Biosphere Reserve (UA)	85
1993	Whale Sanctuary of El Vizcaino	World Heritage Site (natural or mixed) (UA)	67
2000	Complejo Lagunar Ojo de Liebre	Reserva de la Biosfera (VI)	52
2000	Valle de Los Cirios	Área de Protección de Flora y Fauna (VI)	10

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	81
Desert	3
Marine Intertidal	major (>10)
Marine Neritic	minor (<10)

Land use	% of IBA
nature conservation and research	90
not utilised	15
urban/industrial/transport	minor (<10)

Tenencia de la tierra: Ejidal y federal.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Complejo Lagunar Ojo de Liebre (Mexico). Downloaded from https://datazone.birdlife.org/site/factsheet/complejo-lagunar-ojo-de-liebre-iba-mexico on 23/12/2024.