GU001
Guam National Wildlife Refuge


Country/territory: Guam (to USA)

IBA Criteria met: A1, A2 (2007)
For more information about IBA criteria please click here

Area: 4,477 ha

Protection status:

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2014 very high very unfavourable medium
For more information about IBA monitoring please click here


Site description
The Guam National Wildlife Refuge IBA contains several portions of the larger Guam National Wildlife Refuge, including the USFWS-owned Ritidian Point and much of the US Air Force Overlay Refuge. The IBA includes known populations of the Mariana Crow and a snake-free enclosure with Guam Rails.

Key biodiversity
The IBA includes known populations of the Mariana Crow and a snake-free enclosure with Guam Rails. Micronesian Starlings were also observed in the IBA in 2005 (GDAWR, 2005). Additionally, the refuge is known to hold important habitat for the Guam subspecies of the Micronesian Kingfisher. Recovery plans for the kingfisher include reintroduction of the bird from captive breeding programs (USFWS, 2004b).

Non-bird biodiversity: Additional species known to occur in the proposed IBA include (Wesley, 2007): • Mariana Fruit Bat • Moth Skink • Green Sea Turtles • Serianthes nelsonii • Native tree snails • Coconut crabs • Land crabs • Native skinks, geckos • Native insects


Recommended citation
BirdLife International (2018) Important Bird Areas factsheet: Guam National Wildlife Refuge. Downloaded from http://www.birdlife.org on 18/12/2018.