Abstract

The Night Snake (Hypsiglena torquata) is a secretive snake that is rarely encountered. Subsequently, little is known about the ecology of this species. Since it was first collected in 1943 in Washington State, few (<40) specimens have been found. From May to October 2004 and 2005, I collected 121 specimens from 8 counties in eastern Washington State by road-cruising appropriate habitat. Snakes were collected crossing roads bisecting a variety of habitats including areas of talus (such as rocky canyons), oak savannah-woodlands, sagebrush-rabbitbrush flats, pine-fir forests, grasslands, and areas of agricultural development (cropland). Snakes were most often observed in areas with an abundance of talus, followed by oak savannah-woodlands, sagebrush-rabbitbrush flats, and to a much lesser extent pine-fir forests, grasslands, and croplands. Based upon my research, H. torquata is much more common in Washington than previous work has shown.

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