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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
Masked Duck Nomonyx dominicus	LC	resident (2007)	< 50 birds	B4i
Red-billed Tropicbird Phaethon aethereus	LC	breeding (2007)	< 50 birds	B4ii
Purple-throated Carib Eulampis jugularis	LC	resident (2007)	unknown	A2
Antillean Crested Hummingbird Orthorhyncus cristatus	LC	resident (2007)	unknown	A2
Royal Tern Thalasseus maximus	LC	resident (2007)	< 50 birds	B4i
Caribbean Elaenia Elaenia martinica	LC	resident (2007)	250-999 birds	A2
Lesser Antillean Pewee Contopus latirostris	LC	resident (2007)	250-999 birds	A2
Lesser Antillean Flycatcher Myiarchus oberi	LC	resident (2007)	unknown	A2
White-breasted Thrasher Ramphocinclus brachyurus	EN	resident (2007)	100 birds	A1, A2
Scaly-breasted Thrasher Allenia fusca	LC	resident (2007)	unknown	A2
Brown Trembler Cinclocerthia ruficauda	LC	resident (2007)	unknown	A2
Grey Trembler Cinclocerthia gutturalis	LC	resident (2007)	unknown	A2
Lesser Antillean Euphonia Euphonia flavifrons	LC	resident (2007)	unknown	A2
Saint Lucia Oriole Icterus laudabilis	EN	resident (2007)	100–300 birds	A1, A2
Saint Lucia Warbler Setophaga delicata	LC	resident (2007)	unknown	A2
Lesser Antillean Saltator Saltator albicollis	LC	resident (2007)	unknown	A2
Lesser Antillean Bullfinch Loxigilla noctis	LC	resident (2007)	unknown	A2
Saint Lucia Black Finch Melanospiza richardsoni	EN	resident (2007)	500 birds	A1, A2

Year	Protected Area	Designation (management category)	% coverage of IBA
1916	Castries and Dennery Waterworks Reserve and Marquis	Protected Forest / Forest Reserve (II)	12
1986	Marquis Mangroves	Marine Reserve (-)	-
1986	Fond D'Or Beach	Marine Reserve (-)	-
1986	Louvet Mangroves	Marine Reserve (-)	-
1986	Grand Anse Beach and Mangrove	Marine Reserve (-)	-
1986	Cas-en-Bas Mangroves	Marine Reserve (-)	-

Habitat	% of IBA	Habitat detail
Shrubland	major (>10)

Land use	% of IBA
other	major (>10)
agriculture	minor (<10)
energy production and mining	minor (<10)
hunting	minor (<10)
nature conservation and research	minor (<10)
tourism/recreation	minor (<10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Iyanola and Grande Anses, Esperance and Fond D'ors (St Lucia). Downloaded from https://datazone.birdlife.org/site/factsheet/iyanola-and-grande-anses-esperance-and-fond-dors-iba-st-lucia on 23/12/2024.