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The site was identified as important in 2008 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
Red-billed Tropicbird Phaethon aethereus	LC	resident	2003	present	A4ii
Galapagos Dove Zenaida galapagoensis	NT	resident	2003	present	A2
Galapagos Rail Laterallus spilonota	VU	resident	2003	present	A1, A2
Wedge-rumped Storm-petrel Hydrobates tethys	LC	resident	2003	present	A4ii
Band-rumped Storm-petrel Hydrobates castro	LC	resident	2003	present	A4ii
Galapagos Petrel Pterodroma phaeopygia	CR	resident	2003	present	A1, A4ii
Tropical Shearwater Puffinus bailloni	LC	resident	2003	present	A4ii
Blue-footed Booby Sula nebouxii	LC	resident	2003	present	A4ii
Wandering Tattler Tringa incana	LC	resident	2003	present	A4i
Swallow-tailed Gull Creagrus furcatus	LC	resident	2003	present	A4i
Lava Gull Larus fuliginosus	VU	resident	2003	present	A1, A4i
Galapagos Flycatcher Myiarchus magnirostris	LC	resident	2003	present	A2
San Cristobal Mockingbird Mimus melanotis	NT	resident	2003	present	A1, A2
Grey Warbler-finch Certhidea fusca	LC	resident	2003	present	A2
Vegetarian Finch Platyspiza crassirostris	LC	resident	2003	present	A2
Large Tree-finch Geospiza psittacula	VU	resident	2003	present	A2
Small Tree-finch Geospiza parvula	LC	resident	2003	present	A2
Woodpecker Finch Geospiza pallida	NT	resident	2003	present	A2
Small Ground-finch Geospiza fuliginosa	LC	resident	2003	present	A2
Medium Ground-finch Geospiza fortis	LC	resident	2003	present	A2

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2008) may differ.

Year	Protected Area	Designation	% overlap with IBA
1978	Galápagos Islands	World Heritage Site (natural or mixed)	100
1984	Archipielágo de Colón (Galápagos)	UNESCO-MAB Biosphere Reserve	100
1996	Galápagos	Parque Nacional	100
1998	Galápagos	Reserva Marina	100

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isla San Cristóbal (Ecuador). Downloaded from https://datazone.birdlife.org/site/factsheet/isla-san-cristóbal-iba-ecuador on 22/11/2024.