The Seychelles warbler is a rarity in that it exhibits cooperative breeding, or alloparenting, which means that the monogamous pair is assisted by nonbreeding female helpers.

A few decades ago the Seychelles warbler was on the verge of extinction, with only 26 birds surviving on Cousin Island in 1968.

The Seychelles warbler naturally occurs in dense shrubland and in tall forests of Pisonia grandis.

[11] The planting of Morinda on Cousin Island, and the associated improved foraging for the warbler, was an important part of the recovery of the species.

Seychelles warblers demonstrate cooperative breeding, a reproductive system in which adult male and female helpers assist the parents in providing care and feeding the young.

This change suggests that Seychelles warblers may have pre-ovulation control of offspring sex ratio, although the exact mechanism is unknown.

Seychelles warblers are socially monogamous, whereby a male and female form a long-term pair bond and cooperate to raise their young.

It has been suggested that physiological stress from harsh environmental conditions may be the cause of the increased divorce rates, rather than changes in reproductive success.