The White-breasted Thrasher (Ramphocinclus brachyurus) is a species of bird in the Mimidae family.

Mongooses, introduced in the 1800s, prey upon bird eggs and have exterminated or endangered a number of native birds, including the Martinique trembler, white-breasted trembler and white-breasted thrasher.

Here, the White-breasted Thrasher appears to be quite basal though it is impossible to place it anywhere with certainty, whereas the Pearly-eyed Thrasher is probably quite close to the tremblers.

The White-breasted Thrasher (Ramphocinclus brachyurus) is a species of bird in the Mimidae family.