Answered By: Jeffrey Orrico
Last Updated: Feb 03, 2017     Views: 842

Snakes, being cold-blooded, become active and more readily seen by us as the weather warms. 

The only poisonous snakes native to Connecticut are the Copperhead and the Timber Rattlesnake. The Eastern Water Snake, which can be seen in lakes and streams, is NOT poisonous, although some mistake it for the Cottonmouth Snake (sometimes called the Water Moccasin), which is poisonous but which lives in southern states. However, all snakes can cause bite injuries.

The Connecticut Department of Energy and Environmental Protection publishes an online guide which you may find helpful:  Amphibians & Reptiles in Connecticut -- ­­­ 

The Ohio Public Library Network has an online snake ID tool (focused on Ohio snakes, but many are also in Connecticut) -

The nonprofit environmental organization Discover Life also offers an online snake ID tool, although to use it fully you would need a close-up examination of the snake:

Additional information and photographs of a large variety of snakes can be viewed at the Snakes of North America webpage authored by Dr. Martin C. Schmidt, Dept. of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine -

You may be able to visit or speak with the herpetologist at Beardsley Zoo (Bridgeport), Connecticut’s only zoo - .

Other reptile experts can be found at:

Pawtuxet Research Center (USGS) -

Many reference articles, images, and journal articles about snakes are included in the Science in Context (Science Resource Center) database; copy and paste the entire URL below in your browser’s address bar:

Additional online resources on snakes are included in the Science Resource Center (EBSCO) database; click on or copy and paste the entire URL below into your browser's address bar: 

Our catalog lists some more comprehensive snake guidebooks which you can peruse when the Sacred Heart University library, or you can search the holdings of Connecticut public libraries on the iConn website:

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