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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
Bridled Quail-Dove Geotrygon mystacea	LC	resident (2007)	unknown	A2
Lesser Antillean Swift Chaetura martinica	LC	resident (2007)	unknown	A2
Purple-throated Carib Eulampis jugularis	LC	resident (2007)	unknown	A2
Green-throated Carib Eulampis holosericeus	LC	resident (2007)	unknown	A2
Antillean Crested Hummingbird Orthorhyncus cristatus	LC	resident (2007)	unknown	A2
Saint Lucia Amazon Amazona versicolor	VU	resident (2007)	800–1,000 birds	A1, A2
Caribbean Elaenia Elaenia martinica	LC	resident (2007)	1,000-2,499 unknown	A2
Lesser Antillean Pewee Contopus latirostris	LC	resident (2007)	2,500-9,999 birds	A2
Lesser Antillean Flycatcher Myiarchus oberi	LC	resident (2007)	unknown	A2
Scaly-breasted Thrasher Allenia fusca	LC	resident (2007)	unknown	A2
Pearly-eyed Thrasher Margarops fuscatus	LC	resident (2007)	unknown	A2
Brown Trembler Cinclocerthia ruficauda	LC	resident (2007)	unknown	A2
Grey Trembler Cinclocerthia gutturalis	LC	resident (2007)	unknown	A2
Rufous-throated Solitaire Myadestes genibarbis	LC	resident (2007)	unknown	A2
Forest Thrush Turdus lherminieri	NT	resident (2007)	present	A1, A2
Lesser Antillean Euphonia Euphonia flavifrons	LC	resident (2007)	unknown	A2
Saint Lucia Oriole Icterus laudabilis	EN	resident (2007)	2,500-9,999 birds	A1, A2
Semper's Warbler Leucopeza semperi	CR	resident (1961)	< 50 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)	2,500-9,999 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)	96
1946	Government Forest Reserve	Forest Reserve (-)	100

Habitat	% of IBA	Habitat detail
Forest	major (>10)
Introduced vegetation	minor (<10)

Land use	% of IBA
nature conservation and research	major (>10)
forestry	major (>10)
tourism/recreation	minor (<10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Castries and Dennery Waterworks Reserve and Marquis (St Lucia). Downloaded from https://datazone.birdlife.org/site/factsheet/castries-and-dennery-waterworks-reserve-and-marquis-iba-st-lucia on 23/12/2024.