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The site was identified as important in 2007 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
Puerto Rican Nightjar Antrostomus noctitherus	VU	resident	2007	unknown	A1, A2
Green Mango Anthracothorax viridis	LC	resident	2007	unknown	A2
Puerto Rican Mango Anthracothorax aurulentus	LC	resident	2004	unknown	A2
Puerto Rican Emerald Riccordia maugaeus	LC	resident	2004	unknown	A2
Puerto Rican Lizard-cuckoo Coccyzus vieilloti	LC	resident	2007	unknown	A2
Brown Pelican Pelecanus occidentalis	LC	breeding	2000	40 breeding pairs	B4i
Wilson's Plover Charadrius wilsonia	LC	passage	1991	294 individuals	B4i
Snowy Plover Charadrius nivosus	NT	breeding	2004	266 individuals	A4i
Stilt Sandpiper Calidris himantopus	NT	passage	1991	19,895 individuals	A4i
Roseate Tern Sterna dougallii	LC	breeding	2000	300-650 individuals	A4i
Sandwich Tern Thalasseus sandvicensis	LC	breeding	1998	465 breeding pairs	A4i
Puerto Rican Owl Gymnasio nudipes	LC	resident	2007	unknown	A2
Puerto Rican Tody Todus mexicanus	LC	resident	2004	unknown	A2
Puerto Rican Woodpecker Melanerpes portoricensis	LC	resident	2007	unknown	A2
Caribbean Elaenia Elaenia martinica	LC	resident	2007	unknown	A2
Lesser Antillean Pewee Contopus latirostris	LC	resident	2004	unknown	A2
Puerto Rican Flycatcher Myiarchus antillarum	LC	resident	2004	unknown	A2
Puerto Rican Vireo Vireo latimeri	LC	resident	2004	unknown	A2
Pearly-eyed Thrasher Margarops fuscatus	LC	resident	2004	unknown	A2
Puerto Rican Euphonia Euphonia sclateri	LC	resident	2004	unknown	A2
Yellow-shouldered Blackbird Agelaius xanthomus	EN	resident	2007	994 individuals	A1, A2
Adelaide's Warbler Setophaga adelaidae	LC	resident	2004	unknown	A2
Puerto Rican Spindalis Spindalis portoricensis	LC	resident	2004	unknown	A2
Puerto Rican Bullfinch Melopyrrha portoricensis	VU	resident	2004	unknown	A2
A4iii Species group - waterbirds	n/a	winter	1991	unknown	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

Year	Protected Area	Designation	% overlap with IBA
-	Bosque Estatal De Boquerón	State Resource Management Area	4
-	Reserva Natural De La Parguera	Private Conservation	3
1918	Bosque Estatal de Boqueron	State Forest	-
1974	Refugio Nacional de Vida Silvestre Salinas de Cabo Rojo	National Wildlife Refuge	-
1979	La Parguera	Natural Reserve	26
1979	Reserva Natural La Parguera	Natural Reserve	-
1981	Guanica	UNESCO-MAB Biosphere Reserve	29
1985	Bosque Estatal de Guánica	Natural Reserve	6
1998	Bosque Natural de Boquerón	Natural Reserve	16

The Local Conservation Group(s) listed below are working to conserve this IBA.

Name	Year formed
Caborrojeños Pro Salud y Ambiente	0

For more information on BirdLife's work with Local Conservation Groups, please click here.

Habitat1	Habitat detail	% of IBA
Forest	Mangrove	major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Marine Neritic		major (>10)
Shrubland	Arid lowland scrub	major (>10)
Grassland		-
Introduced vegetation		-

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	-
other	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Suroeste (Puerto Rico (to USA)). Downloaded from https://datazone.birdlife.org/site/factsheet/suroeste-iba-puerto-rico-(to-usa) on 23/11/2024.