Rota bridled White-eye as endangered bird of Nauru

Rota Bridled White-eye (Zosterops rotensis) is a species of bird in the Zosteropidae family. It is endemic to Rota in Northern Mariana Islands (USA).Its natural habitat is subtropical or tropical moist lowland forests. It feeds on insects, seeds, and fruit, and perhaps nectar.
The species has characteristics are Small, warbler-like bird , 10 cm in size, yellowish-olive above, saffron-yellow lores and underparts. This is special characteristic of bold white eye-ring .The bird moves about in small groups.
This species qualifies as Critically Endangered due to small population has declined very rapidly as a result of this habitat loss in combination with other factors. It may decline even more rapidly in the near future if brown tree snake Boiga irregularis becomes established on the island. Population estimated 1,100 birds.

Faichuk White-eye, (Rukia ruki) is a species of bird in the Zosteropidae family. It is endemic to the summit of Mount Winipat on Tol, in the Faichuk group of islands within the Chuuk (Truk) atoll in Federated States of Micronesia.
Its habitat is mountain rainforest dominated by the endemic Chuuk Poisontree. Due to it restricted range on one small mountaintop and the locals' disdain for the native poisontree, it is severely threatened by habitat loss. This species qualifies as Critically Endangered because Population estimated in the hundred, 530 birds, which is likely to be declining owing to continuing habitat loss. A large typhoon could plausibly lead to its extinction.
The species has characteristics are medium-sized 14 cm, all-dark, warbler-like bird, uniform dark-brown with black bill, orange legs and conspicuous white "teardrop" below the eye. The voice lively song and lilting warble very similar to song of Golden White-eye of the Marianas. Some advocate that it is the only true member of the genus Rukia, or the "Great White-eyes". It feeds by foraging for insects in the foliage.