Grey Trembler (Cinclocerthia gutturalis) [XC417814]
by Allen T. Chartier from Gros Islet, Gros Islet, St Lucia (song)
Grey Trembler (Cinclocerthia gutturalis) [XC417165]
by Arne Thelin from 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.