Classification
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All Names

  • English
    • Southern Pacific Rattlesnake
  • Scientific Names
    • Crotalus oreganus helleri
    • Crotalus helleri
    • Crotalus viridis helleri

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Recent observations

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

steviekgold

Date

July 3, 2015 02:10 PM PDT

Description

Originally found in crook of tree about 3 feet up near a dead western fence lizard, likely its prey item. It feel out of the tree and slithered into branches and poison oak

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

July 2, 2015 08:32 PM PDT

Description

Eating

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

nhm_nature

Date

June 26, 2015 06:24 PM PDT

Description

Observation and photo by Jane Fawke.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

jorgehvaldez

Date

June 24, 2015

Place

(Somewhere...)

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cdegroof

Date

April 11, 2015 10:37 AM PDT

Place

(Somewhere...)

Description

As flipped

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

david28

Date

May 27, 2015 03:31 PM PDT

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

June 27, 2015

Place

(Somewhere...)

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

dominic

Date

June 16, 2015

Description

I wanted to explore the forested area for a little bit. After walking up the path I saw some ground squirrels acting weird. I knew that there was a rattlesnake but I didn't see any. Finally I saw a baby ground squirrel and saw the rattlesnakes head about half an inch away from the baby squirrel. This rattlesnake was huge. It was fat too. This was the only rattlesnake I found throughout my whole trip. Throughout the whole trip people kept saying be careful of rattlesnakes and this was the only one. Not saying don't be careful but it felt good proving them all wrong.

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cooter

Date

June 15, 2015 10:54 AM PDT

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

cateschmidt

Date

March 1, 2013 09:34 AM PST

Photos / Sounds

Square

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Observer

jgcalifornia

Date

June 15, 2015

Photos / Sounds

What

Southern Pacific Rattlesnake Crotalus oreganus ssp. helleri

Date

June 22, 2015

Place

(Somewhere...)
View all observations

Description from Wikipedia

Crotalus oreganus helleri is a venomous pitviper subspecies found in southwestern California and south into Baja California, Mexico.

No range data available.