[1] Following studies from 2016, 2019, and 2024, the St. Lucia thrasher was classified as a distinct species by the IOC, AOS, and Clements checklist.

[4] On the island of St. Lucia, its plumage makes it unmistakable, with dark brown upperparts and pale white underparts.

It can be quite noisy when defending its territory, both against other species and other St. Lucia thrashers, and performs a display similar to a Trembler where it cocks its tail and droops its wings then flutters them.

[1] But by 1927, it was considered rare when ornithologist James Bond succeeded in finding a small colony and obtained one specimen.

During the early 1930s the species was even believed to be extinct due to failed efforts to locate the colony discovered by Bond.