Great Gray Owl, Red Tree Vole and Amphibians

Red tree vole, Arborimus longicaudus

Pre-Disturbance Surveys

Site Management - High Priority Sites

Site Management - Non-High Priority Sites

Site Management - Managing Known Sites and Determining Habitat Areas

Great gray owl, Strix nebulosa

Pre-Disturbance Surveys

Great Gray Owl Broadcast Calls for Pre-Disturbance Surveys

Thanks to the Cornell Laboratory of Ornithology for recorded material in Tracks 1-7. Thanks to Eleanor A. Pugh for recorded material in Tracks 8-16. To play, left-click on the music format of your choice. To download, right-click on the music format of your choice and select “Save target as”.

Please Note: Some computers may not support directly playing the MP3 audio file. You will need to download and save the file to your computer before you can play them.

Broadcast Calls for Pre-Disturbance Surveys

Bird Calls that May be Confused with Great gray owl calls and Other Owls You May Encounter During Your Surveys

Site Management


Pre-Disturbance Surveys

Site Management

  • Shasta salamander, Hydromantes shastae – Please see the January 2001 Record of Decision and Standards and Guidelines for Amendments to the Survey and Manage, Protection Buffer, and other Mitigation Measures Standards and Guidelines, page 40 of the Standards and Guidelines section.
  • Please see the ISSSSP website for conservation assessments for the following species:
    • Larch Mountain salamander, Plethodon larselli
    • Siskiyou Mountains salamander, Plethodon stormi
    • Van Dyke’s salamander, Plethodon vandykei