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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Puerto Rican Nightjar Antrostomus noctitherus	VU	resident (1985–1992)	177 birds	A1, A2
Green Mango Anthracothorax viridis	LC	resident (2006)	unknown	A2
Puerto Rican Mango Anthracothorax aurulentus	LC	resident (2007)	unknown	A2
Puerto Rican Emerald Riccordia maugaeus	LC	resident (2006)	unknown	A2
Puerto Rican Lizard-cuckoo Coccyzus vieilloti	LC	resident (2006)	unknown	A2
Puerto Rican Owl Gymnasio nudipes	LC	resident (2007)	unknown	A2
Puerto Rican Tody Todus mexicanus	LC	resident (2006)	unknown	A2
Puerto Rican Woodpecker Melanerpes portoricensis	LC	resident (2006)	unknown	A2
Lesser Antillean Pewee Contopus latirostris	LC	resident (2006)	unknown	A2
Puerto Rican Flycatcher Myiarchus antillarum	LC	resident (2006)	unknown	A2
Puerto Rican Vireo Vireo latimeri	LC	resident (2006)	unknown	A2
Pearly-eyed Thrasher Margarops fuscatus	LC	resident (2006)	unknown	A2
Puerto Rican Euphonia Euphonia sclateri	LC	resident (2006)	unknown	A2
Elfin Woods Warbler Setophaga angelae	EN	resident (2003–2004)	250-999 birds	A1, A2
Adelaide's Warbler Setophaga adelaidae	LC	resident (2007)	unknown	A2
Puerto Rican Spindalis Spindalis portoricensis	LC	resident (2006)	unknown	A2
Puerto Rican Tanager Nesospingus speculiferus	VU	resident (2006)	unknown	A2
Puerto Rican Bullfinch Melopyrrha portoricensis	VU	resident (2006)	unknown	A2

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Bosque Estatal De Maricao	State Resource Management Area (VI)	48
-	Bosque Estatal De Susúa	State Resource Management Area (VI)	15
1919	Bosque Estatal de Maricao	State Forest (-)	-
1935	Bosque Estatal de Susua	State Forest (-)	-

Habitat	% of IBA	Habitat detail
Caves and Subterranean Habitats (non-aquatic)	-
Forest	-
Introduced vegetation	-
Shrubland	-

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Maricao and Susúa (Puerto Rico (to USA)). Downloaded from https://datazone.birdlife.org/site/factsheet/maricao-and-susúa-iba-puerto-rico-(to-usa) on 23/12/2024.