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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 Mango Anthracothorax aurulentus	LC	resident (2007)	unknown	A2
Green-throated Carib Eulampis holosericeus	LC	resident (2007)	unknown	A2
Puerto Rican Emerald Riccordia maugaeus	LC	resident (1997)	unknown	A2
Antillean Crested Hummingbird Orthorhyncus cristatus	LC	resident (1997)	unknown	A2
Wilson's Plover Charadrius wilsonia	LC	breeding (1985–1986)	93 birds	B4i
Puerto Rican Owl Gymnasio nudipes	LC	resident (1997)	unknown	A2
Puerto Rican Tody Todus mexicanus	LC	resident (2007)	unknown	A2
Puerto Rican Woodpecker Melanerpes portoricensis	LC	resident (1997)	unknown	A2
Caribbean Elaenia Elaenia martinica	LC	resident (2007)	unknown	A2
Puerto Rican Flycatcher Myiarchus antillarum	LC	resident (1997)	unknown	A2
Puerto Rican Vireo Vireo latimeri	LC	resident (2007)	unknown	A2
Pearly-eyed Thrasher Margarops fuscatus	LC	resident (1997)	unknown	A2
Puerto Rican Euphonia Euphonia sclateri	LC	resident (2007)	unknown	A2
Yellow-shouldered Blackbird Agelaius xanthomus	EN	resident (2007)	59 birds	A1, A2
Adelaide's Warbler Setophaga adelaidae	LC	resident (1997)	unknown	A2
Puerto Rican Spindalis Spindalis portoricensis	LC	resident (2007)	unknown	A2
Puerto Rican Bullfinch Melopyrrha portoricensis	VU	resident (2007)	unknown	A2
A4iii Species group - waterbirds	n/a	unknown (2007)	20,000 birds	A4iii

Year	Protected Area	Designation (management category)	% coverage of IBA
1918	Aguirre	Commonwealth Forest (-)	14
1981	Jobos Bay	National Estuarine Research Reserve (IV)	14
1981	Jobos Bay Reserve	National Estuarine Research Reserve (IV)	17
1983	Bosque Estatal de Aguirre	Marine Protected Area (V)	6

Habitat	% of IBA	Habitat detail
Marine Neritic	major (>10)
Forest	-	Mangrove; Second-growth & disturbed; Tropical semi-deciduous
Introduced vegetation	-
Marine Coastal/Supratidal	-
Marine Intertidal	-
Shrubland	-

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Jobos Bay (Puerto Rico (to USA)). Downloaded from https://datazone.birdlife.org/site/factsheet/jobos-bay-iba-puerto-rico-(to-usa) on 23/12/2024.