Guam Rail Fact Sheet

Guam Rail

Class:

Aves

Order:

Gruiformes

Family:

Rallidae

Genus:

Gallirallus
Species:

owstoni

Lifespan:

Up to 10 years in captivity

Gestation:

19 days

Number of Young:

3-4 chicks

Size:

Height 11 in

Weight:

Between 6 to 10.6 oz

Reproduction:

Monogamous pairs breed all year

Range:

Formerly on Guam, Mariana Island.  Reintroduced to Rota, northern Mariana Island, and Guam

Habitat:

Forest, woodland, scrub, grassland, and agriculture

Diet:

Leaves, seeds, fruits, small lizards, bird eggs, small mammals and carrion.

Description:

Underparts olive-brown; fore neck to breast gray; underparts and remiges barred black and white.  Young has less gray; chick covered with black down

 

Facts:

  • Guam rails can only fly about 3-10 ft at a time.
  • Extinct in the wild.
  • Rails are characteristically omnivorous which allows them to take advantage of available food sources.
  • Other species of rail are seeing a continuous population decline due to habitat loss.