Thamnophis sirtalis tetrataenia, California – October 3, 2015
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Thamnophis sirtalis fitchi, Trinity County, California – October 2, 2015
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Thamnophis sirtalis sirtalis, near Mill Pond, Leeds and Grenville, Ontario, Canada – September 15, 2015
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Thamnophis sirtalis fitchi, Pinnacles National Park, San Benito, California – May 30, 2015
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Thamnophis sirtalis fitchi, south-west of Mt. Bachelor, along Little Lava Lake, Oregon – June 24, 2015
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Thamnophis sirtalis pallidulus, Cape Breton Highlands National Park, Nova Scotia, Canada – July 1, 2015
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Thamnophis sirtalis sirtalis, Near Cleveland Metroparks Zoo, Cleveland, Ohio – September 7, 2015
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Thamnophis sirtalis infernalis, Near Redwood Creek, California – September 5, 2015
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Thamnophis sirtalis, East of Bay City, Texas – September 1, 2015
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Thamnophis sirtalis sirtalis, Gordon Park, Cleveland, Ohio – May 8, 2014
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Thamnophis sirtalis sirtalis, south-east of Woodstock, New Hampshire – August 23, 2015
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Thamnophis sirtalis sirtalis, near Wanakena, New York, August 20, 2015
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Thamnophis sirtalis, Millbury, Massachusetts – July 14, 2009
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Thamnophis sirtalis sirtalis, east of Searcy, Arkansas – March 20, 2015
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Thamnophis sirtalis sirtalis, Thunder Bay, Ontario, Canada – September 28, 2011
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Thamnophis sirtalis sirtalis, Sand Run Metro Park, Akron, Ohio – August 8, 2015
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Thamnophis sirtalis sirtalis, Summit, Ohio – August 1, 2015
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Thamnophis sirtalis sirtalis (roadkill), east of North Bethesda, Maryland – September 12, 2015
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Thamnophis sirtalis sirtalis, near Harbour Town, South Carolina – July 28, 2015
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Thamnophis sirtalis sirtalis, north-east of Liverpool, Illinois, July 29, 2015
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Thamnophis sirtalis sirtalis, near the University of Connecticut, Storrs, Connecticut – July 25, 2015
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Thamnophis sirtalis annectans, Z Boaz Park, north of Benbrook, Texas – July 22, 2015
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Thamnophis sirtalis sirtalis, Tallgrass Prairie Heritage Park, Windsor, Canada – July 18, 2015
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Thamnophis sirtalis infernalis, east of Marshall, California – July 17, 2015
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Thamnophis sirtalis, the Butchart Gardens, south-west of Brentwood Bay, Canada – July 13, 2015
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Thamnophis sirtalis sirtalis, near the Winooski River, east of Burlington, Vermont – July 14, 2015
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Thamnophis sirtalis sirtalis, Jones Mill Run, east of Seven Springs, Pennsylvania – July 11, 2015
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Thamnophis sirtalis sirtalis, Delta park, along Lake Champlain, Vermont – June 26, 2015
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Thamnophis sirtalis sirtalis, Middlesex, Massachusetts – July 5, 2015
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Thamnophis sirtalis sirtalis, east of Bent Creek, Tennessee – July 1, 2015
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Thamnophis sirtalis sirtalis, east of Washington, New Jersey – June 5, 2015
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Thamnophis sirtalis sirtalis, south of Richmond, Kentucky – May 2, 2015
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Thamnophis sirtalis sirtalis, between Barnard and Killington, New England – June 13, 2015
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Thamnophis sirtalis sirtalis, west of Harlington, Somerset County, New Jersey – June 13, 2015
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Thamnophis sirtalis tetrataenia, west of West Waddell Creek, California – May 8, 2015
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Thamnophis sirtalis tetrataenia, San Mateo County, California – April 28, 2015
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Thamnophis sirtalis infernalis, Healdsburg Area, Sonoma County, San Francisco Bay Area, California – April 4, 2015
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