[2][3][4] The Floreana mockingbird is also known as Darwin's mockingbird, as it was the arguable inspiration for Charles Darwin's work on the origins of species; he noticed distinct differences between them and previous species he had encountered and consequently established the existence of other variants on neighboring islands.

They have a pale supercilium, a black patch in front of the eye, a darkish one below it, and white cheeks.

The islets provide a habitat of low vegetation along their shores and arid scrub with cacti and a few trees inland.

[3] The Floreana mockingbird's breeding season spans from October to April and two broods are usual.

It was extirpated from Floreana by 1888; introduced rats, mice, cats, dogs, and goats have all been implicated as causes.

The population on the two islets has fluctuated with the presence or absence of El Niño events but is believed to exceed 250 individuals and be stable.