Grey Trembler (Cinclocerthia gutturalis) [XC418628]
by Arne Thelin from Gros Islet, Gros Islet, St Lucia (call)
Grey Trembler (Cinclocerthia gutturalis) [XC590891]
by Simon Elliott from Balata, Gros Islet, St Lucia (song)
Subspecies
Genus may be most closely related to Margarops. Contrary to earlier opinion, appears not to be close to Ramphocinclus. Probably forms a superspecies with Brown Trembler (Cinclocerthia ruficauda), and previously considered conspecific.
The following 2 subspecies are recognised:
gutturalis (Lafresnaye, 1843) - Martinique, in central Lesser Antilles.
macrorhyncha Sclater, PL, 1866 - St Lucia, in south-central Lesser Antilles.