email a friend
printable version
Location Bonaire, Sint Eustatius and Saba (to Netherlands), Sint Eustatius
Central coordinates 62o 57.66' West  17o 28.74' North
IBA criteria A2
Area 470 ha
Altitude 250 - 601m
Year of IBA assessment 2007

Site description The Quill is the highest point on St. Eustatius (601 m) and forms the southeast part of the island. There is no human settlement above 250 meters elevation, which is designated as the Quill National Park. The park includes the vegetated caldera within this volcanic mountain. Goats are sometimes found grazing in the area, despite regulations against such activity.

Key Biodiversity Limited-range species which occur at the Quill include Bridled Quail Dove Geotrygon mystacea, Purple-throated Carib Eulampis jugularis, Green-throated Carib Eulampis holosericeus, Antillean Crested Hummingbird Orthorhyncus cristatus, BrownTrembler Cinclocerthia ruficauda pavida, Scaly-breasted Thrasher Margarops fuscus, Pearly-eyed Thrasher Margarops fuscatus, and Lesser Atillean Bullfinch Loxigilla noctis. One Scaly-breasted Thrasher was observed at the Quill in 2003, the last recorded sighting being in 1927. Breeding needs to be confirmed for this species. There is little data on migrant birds which use the Quill, but it would not be expected to be a significant overwintering or stopover area due to its small area.

Non-bird biodiversity: The restricted-range species Antillean Iguana Iguana delicatissima and Red-bellied Racer Alsophis rufiventris and the endemic Statia Morning Glory Ipomoea sphenophylla are present within the Quill Park

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bridled Quail-dove Geotrygon mystacea resident  2003  unknown  A2  Least Concern 
Purple-throated Carib Eulampis jugularis resident  2003  unknown  A2  Least Concern 
Green-throated Carib Eulampis holosericeus resident  2003  unknown  A2  Least Concern 
Antillean Crested Hummingbird Orthorhyncus cristatus resident  2003  unknown  A2  Least Concern 
Caribbean Elaenia Elaenia martinica resident  2003  unknown  A2  Least Concern 
Pearly-eyed Thrasher Margarops fuscatus resident  2003  unknown  A2  Least Concern 
Brown Trembler Cinclocerthia ruficauda resident  2003  unknown  A2  Least Concern 
Loxigilla noctis resident  2003  unknown  A2  Not Recognised 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Sint Eustatius Quill National Park National Park 0 is identical to site 0  


IUCN habitat Habitat detail Extent (% of site)
Shrubland Second-growth or disturbed scrub  -
Forest Elfin forest; Tropical semi-evergreen forest  -

Land use

Land-use Extent (% of site)
rangeland/pastureland -
Notes: Grazing Goats
nature conservation and research -

Protection status The proposed IBA is comprised of the Quill National Park, a protected area from 250 meters elevation to the summit and caldera of the Quill.

Further web sources of information 

Site profile from Important Bird Areas in the Caribbean: key sites for conservation (BirdLife International 2008)

References Collier N.C. and A.C. Brown. 2003; Hoogerwerf, A. 1977; Raffaele, H., J. Wiley, O. Garrido, A. Keith, and J. Raffaele. 1998; Rojer, A. 1997b; Stuffers, A.L. 1956; Voous, K. H. 1955; Voous, K. H. 1983

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: The Quill, Sint Eustatius. Downloaded from on 21/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife