Guam rail in exhibit

Guam Rail

Scientific Name

Hypotaenidia owstoni









Estimated Wild Population

Less than 100
Guam rail in exhibit

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Physical Description

Flightless birds, Guam rails are mostly dark brown but have white stripes on their belly. Their compact body enables them to move rapidly through dense vegetation. In the wild, they hunts snails, insects, and lizards. They are territorial and will aggressively defend their area against other birds.

Interesting Fact 1

Guam rails, once widespread on the island of Guam, were considered extinct in the wild until recently.

Interesting Fact 2

Since 2010, 26 mature birds have been released into the wild on Coocos Island as part of a captive breeding program.

Interesting Fact 3

They are only the second bird species to move in a positive direction on the IUCN Red List, which rates the wild population health of many species.

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Species Survival Plan®

We cooperate with other members of the Association of Zoos and Aquariums to manage the zoo population of this species through a Species Survival Plan®.

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Commitment to Care

Lincoln Park Zoo prioritizes individual well-being over everything else. Guided by scientific research, staff and volunteers work to provide the best welfare outcomes for each individual in the zoo’s care.

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Asian small-clawed otter in exhibit

Wish List

The Wish List is full of one-of-a-kind items for the zoo’s animals, including nutritious snacks and enrichment items to keep them active and healthy. 

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Wildlife face many daunting challenges—some global, like planet-wide climate change, and some that affect individuals, like an animal ingesting plastic—but now is not the time to despair. None of these problems are too big for us to come together and solve.

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