|
Exploring the beautiful nature of California
California Nature: Non-Venomous Snakes
|
|
Let's face it, many if not most people have some anxiety about snakes and with good cause. Snakes are wild reptiles that will bite and defend themselves if threatened. For the welfare of both humans and snakes, it is best to leave them alone and to avoid contact.
California has a variety of snakes, most of which are
benign. The exception is California’s only native venomous snake, the
rattlesnake.
Snakes have long bodies with no legs. They crawl on their bellies. Some are excellent climbers, most can swim.
The body is covered with dry skin with visible scales, which may be smooth or rough, and might appear wet or slimy.
Snakes can be found on land, in water, in trees and shrubs, underneath objects, and in holes in the ground.
They can be active at any time during the day or night, but many species are mostly either diurnal or nocturnal.
Snakes can be seen whenever there is warm weather. Rarely in winter.
When snakes move, the pattern and colors often blend together
making them difficult to observe.
|
 |
California gartersnakes are medium-sized
slender snakes with a head barely wider than the
neck and scales on the back which are keeled -
having a ridge lengthwise on each scale.
Most species have a stripe on top of the back,
and on the bottom of each side, but on some
species this stripe is faint or absent, and
sometimes the side stripes are absent. Many
gartersnakes have red coloring on the sides,
often with a red and black checkered pattern.
Others have a variation of light and dark
checkering on the sides.
Most California gartersnakes are active during
the daytime, but sometimes they will be active
at night during very hot weather. They are
usually found in or around water, although
sometimes they are found on land far from water.
Exceptions are Marcy's Checkered Garter snake
which is most active at night, and the
Northwestern Garter snake which is not typically
found near water.
When handled, gartersnakes will often release
foul-smelling fluids from the vent near the end
of the tail, and many will strike repeatedly at
the handler. Gartersnakes do not pose any danger
to humans, but their saliva does contain certain
toxins which can cause redness and swelling at
the site of a bite.
|
|
|
Rubber boas are thick-bodied, blunt-tailed,
slow-moving snakes found in moist areas in grassland, chaparral,
woodland, and forest. Active on the surface mostly at night,
they are often at low temperatures for snakes. Usually found
crossing roads at night and under surface objects such as rocks,
logs, and boards, there at two species found in California
nature.
Rubber boas are one of the smallest members of the boa family,
and one of the northern most ranging. Rubber boas can be
found from as far south as the San Bernardino and San Jacinto
Mountains to the east of Los Angeles, northward in a nearly
continuous distribution to British Columbia, and eastward
through Idaho, northern Nevada, Utah, central Montana, and
western Wyoming
Rubber boas are incredibly docile snakes and are ideal for
handling by children and those trying to overcome a fear of
snakes. Unlike many other snakes, they never use striking as a
defense mechanism, although if handled too roughly, they will
musk the holder (excrete very smelly substance from their vent),
but absolutely will not strike in defense. Upon being picked up,
a Rubber boa will gently wrap around the holder's wrist for
upwards of an hour or more before seeking to crawl around. Even
when warm and active, Rubber Boas rarely move swiftly.
|
 |
The California Mountain Kingsnake is a harmless, diurnal snake
of forests, chaparral, and coastal scrub. Found primarily in the
mountains, but along the coast it can be found close to sea
level. The California Mountain Kingsnake is often seen along
mountain streams, and underneath rocks in sunny mountain
clearings.
California Mountain Kingsnakes
have a banded pattern that consists of alternating red, black
and white bands. The bands are always arranged in the same order
with each red band being surrounded by black forming what is
called a triad. Each triad is set in white, or on some examples,
cream or yellow. Some individuals may have reduced amounts of
red pigment and rare individuals may have virtually no red bands
at all. One population from Isla Todos Santos always lacks the
red bands and is a uniformly black and white banded snake
similar in appearance to the related California Kingsnake.
This species is mostly diurnal, but will be active at night in
warmer weather. It is an excellent climber, prefers southwestern
facing slopes, and often retreats beneath granite flakes. |
|
|
A medium sized snake, the long-nosed snake
is 22 to 41 inches in length. A vaguely banded snake of black,
white, and red, his snout is elongated and slightly pointed.
Black bands are heavily spotted with white and white bands
heavily spotted with black with this California snake and most
scales are under the tail in a single row. Common only in desert
regions and locally in coastal southern California, the
long-nosed snake is uncommon in the interior Coast Ranges and
the adjacent floor of the Central Valley from Sutter and Butte
counties southward. This species ranges widely in southern
California and is known from desert regions east of the Sierra
and Cascade Ranges north to the Oregon border.
Long-nosed snakes
prey heavily on lizards but also take rodents and other small
prey. Seldom found under surface objects, long-nosed snakes are
good burrowers. A nocturnal snake, burrowing during the day.
When disturbed, this species shakes its tail and exerts its anal
vent exuding blood and feces.
|
|
Non-Venomous Snakes
Venomous Snakes
Lizards
Turtles |
|