Eric VanderWorf
Scientific Name:
Chasiempis sandwichensis
Other Names and/or Listed subspecies:
O'ahu 'Elepaio - C. s. ibidis (US FWS)
Status/Date Listed as Endangered:
VU-IUCN: 2008
EN-US FWS: April 18, 2000
Area(s) Where Listed As Endangered:

The O'ahu 'elepaio is a subspecies of the 'elepaio and endemic to the island of O'ahu in Hawaii. It is a small flycatcher, weighing only 12.5 grams, and it has a long tail. Both male and female are dark brown with white underparts and have light brown streaks on the breast. They also have black markings, and males tend to have more than females, especially on the chin.

These birds prefer native and exotic forest for their habitat, and their numbers are greater in wetter areas. They like to search for food on the ground and in logs, rock crevices, snags, and all parts of trees. They feed on a variety of invertebrates, including mosquitoes and fruit flies. They prefer to remain in mating pairs throughout the year, and breeding occurs from January to July. Nests are built in trees 2 to 24 meters from the ground. The female lays two eggs, and both parents help to keep the eggs warm, and both feed the chicks after the eggs hatch 18 days later. Usually, only one of the chicks will survive but it is not rare for both to survive. The chicks remains dependant on the parents for one month but may remain with the parents for another ten months.

There may be less than 2000 of these birds left in the wild. The species has declined due to a combination of poor reproduction and low adult survival due to disease carried by mosquitoes. They are also threatened by habitat loss and they compete with other non-native species in the area, such as the Japanese white-eye and yellowjackets. Although this species is protected by various federal and state laws, its habitat is not well protected.

Featured Article

10 Unusually White Creatures You'll Probably Never See in Real Life
Creatures with albinism and leucism are beautiful and rare animals. They have all the characteristics of others of their species except they are white in color. The lack of melanin generally results in the animal looking bleached all over, appearing white or pink. It happens in many animals ranging from squirrels to whitetail deer. Here are ten incredible and rare, white-colored creatures that you'll probably never see in real life.



Endangered Species of Our Planet

Donate, Adopt, Get Involved

EEC Conservation Directory

Mailing List

Would you like to receive a notice and link when the new Creature Feature is posted?

Enter your e-mail address below:


Fun & Games

Are you inspired by endangered animals? Check out our games and coloring pages! More to come soon.
color endangered creatures
play hangman