Frigate is the name of the bird, "fregate" the name of their island reserve.
These two formations are huge lumps of rock, really, but they are where colonies of frigate birds nest from May through July. Frigates
are locally called "scisseau" (scissors) because
of their distinctive forked tails.
During the May through July nesting season, no visitors are allowed on the islands but you can view the nesting frigates on a 1.5km trail engineered across cliffs and up to an overlook opposite the Fregate Islands.
Afterwards, you return via a strip of fringing mangrove, then pass through a dry ravine and past a small waterfall. The ravine provides a shady canopy of tall bay trees and other dry forest species.
Other birds that may be observed are the Trembler (Cincloerthis ruficauda) and the St. Lucian oriole (Icterus laudabilis). The ramier (Columbia squamosa) sometimes nests in this area.
If you're lucky, you may also see a beautifully colored boa sleeping on the ground.
Since you are forced to look at everything from a distance, take
binoculars and/or a good telephoto lens. The inflated red throat of
a nesting frigate, like that displayed by many lizards, is a sight you'll