Eastern Garter Snake
Thamnophis s. sirtalis
Chemung County, NY
Identification- 18-26 in (45.7-66 cm) Variable. Base color is
black, green, reddish, or brownish. The three longitudinal stripes are
normally yellow, but may be green, red, orange or blue. Lateral stripes
are on scale rows 2 and 3. There are two rows of dark spots between each
stripe. Often the spots are very prominent and the stripe is occasionally
lacking. The ventral surface is light yellow or tan, sometimes with two
rows of black spots. Melanistic and albino individuals are rare, but not
unheard of. Scales keeled, anal plate single.
Similar Species- Ribbon Snakes have lateral
stripe on rows 3 and 4. Shorthead Garter has a more limited range and a
head no wider than the neck.
Range- Common throughout our range. Probably integrades
with Maritime Garter Snake (Thamnophis sirtalis pallida) in extreme
eastern New York.
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Habitat- A somewhat semi-aquatic snake, the Eastern Garter Snake is most common near water, but may be found in a wide variety of habitats. Woodlands, meadows, stream edges, and marshes are common haunts. This snake is one of the most common snakes in suburban areas and does well in gardens, yards, and parks.
Reproduction- Mates soon after emergence in early spring, occasionally in fall. Mating balls, consisting of many males attempting to mate with one female, are occasionally witnessed. Only one male will successfully mate with the female. It has been found that some males have the ability to mimic females by producing female hormones. Other males, confused, will court this male, ignoring the female. The mimic will attempt to mate with the female while the other males are distracted. Eastern Garter Snakes are viviparous. Four to thirty (avg= 23) young are born June to August and measure 5-9" (12.7-22.8 cm). Females have proportionately shorter tails than males.
Eastern Garter Snake
Thamnophis s. sirtalis
Tioga County, NY
General Characteristics-
This is the most common snake throughout its range.
Garter Snakes (commonly called "Garden Snakes" or "Gardener Snakes") get
their name from a resemblance to the striped garters men once wore to hold
up their socks. They have adapted well to human presence and are commonly
seen patrolling stone walls and gardens in search of earthworms, their
favored food. These snakes are diurnal and often seen during the daylight
hours. They do very well in captivity and will feed on fresh or frozen
fish, earthworms, or other soft bodied invertebrates. Although some can
be quite vicious when first captured, many are actually quite docile and
will tolerate gentle handling. Most individuals will calm down with
time. Frightened Garter Snakes flatten their bodies tight against
the ground. This serves several purposes. It makes the snake
look bigger, makes it physically difficult to pick the snake up, and exposes
the brightly colored skin between the scales. These characteristics
make predators think twice about attacking a Garter Snake. If these
tactics do not work, the snake will emit a foul smelling musk onto the
handler.
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