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You are here: Home / Animals / Species Profiles / Brown Tree Snake
Species Profiles

Brown Tree Snake

Brown tree snakeScientific name: Boiga irregularis (Merrem, 1802) (ITIS)

Common name: Brown tree snake

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Selected Resources

Native To: Australia, Indonesia, Papua New Guinea (Colvin et al. 2005)

Date of U.S. Introduction: First detected in Guam in the 1950s (Colvin et al. 2005)

Means of Introduction: Likely arrived in Guam accidentally in imported cargo (Colvin et al. 2005)

Impact: Preys on native lizards and birds (Colvin et al. 2005); causes frequent power outages by climbing on electrical wires (Colvin et al. 2005)

Current U.S. Distribution: Guam; not currently established in the continental U.S.

Federally Regulated:


Selected Resources:

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Council or Task Force

Species of Concern Fact Sheet: Brown Tree Snake
Aquatic Nuisance Species Task Force.

Brown Tree Snake
Hawaii Invasive Species Council.


Texas Invasives Database - Boiga irregularis

Invasive Species Compendium - Boiga irregularis
CAB International.

Global Invasive Species Database - Boiga irregularis (reptile)
IUCN. Species Survival Commission. Invasive Species Specialist Group.

Federal Government

Brown Tree Snake Program
Commonwealth of Northern Mariana Islands. Division of Fish and Wildlife.

Brown Tree Snake Research at NWRC
USDA. APHIS. National Wildlife Research Center.

Brown Tree Snake: An Invasive Reptile (Jan 2011; PDF | 168 KB)
USDA. APHIS. Wildlife Services.

State Government

Brown Tree Snake Program
Hawaii Department of Agriculture.


Introduced Species Summary Project - Brown Tree Snake
Columbia University. Center for Environmental Research and Conservation.


Wanted: Brown Tree Snake (PDF | 99 KB)
Moanalua Gardens Foundation (Hawaii).

North American Brown Tree Snake Control Team
North American Brown Tree Snake Control Team.


Colvin, B.A., M.W. Fall, L.A. Fitzgerald, and L.L. Loope, 2005. Review of Brown Treesnake Problems and Control Programs: Report of Observations and Recommendations (PDF | 262 KB). Published at the request of the U.S. Department of Interior, Office of Insular Affairs for the Brown Treesnake Control Committee.

Integrated Taxonomic Information System. Boiga irregularis. [Accessed Sep 10, 2014].

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Last Modified: May 06, 2018
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