Humboldt State University

Jeff Black, PhD, DSc

707 826 3439

River Otter Records

Your observations are very much appreciated!

River otters are key indicators of the health of northern California's coasts, rivers and wetlands. This information will be used to describe the local otter population. NOTE: Please do not enter commas in text!

Observer's name:
Time of day:
Observer's email:

or Phone:
Location of sighting?
Example : Smith River 100m north of Hwy 101 bridge.
General description of otter's location?
Examples: river bank muddy slough ocean harbor lagoon freshwater lake etc.

Please use the below map to copy and paste coordinates after zooming in and clicking on location of your sighting.
Coordinate Accuracy:
Exact Location (within 5 meters accuracy)
Approximate Location (within 30 meters accuracy)
General (> 30 meters accuracy)
How many otters total?
How many were definitely adults (leave blank if unknown)? : How many were definitely pups (leave blank if unknown)?
Describe Pup size relative to adult/s
¼ adult size ½ adult size ¾ adult size same size couldn't tell not applicable
How would you describe yourself?
Describe otter's behavior (swimming - foraging - interacting - etc.):
Prey items? (record type of prey that otter captured)
Prey item(s):
Did you discover a well-worn otter path or slide? YES NO
Describe location (substrate or habitat situation):
Did you discover (sweet, fish-smelling) otter scats? YES NO
Describe location (substrate or habitat situation):
Did otter retreat to cover or go to ground? YES NO
Describe location (substrate or habitat situation):
Additional information?

If you captured photo or video please upload the files below. Note that each file must be uploaded seperately.
Upload Photo or Video File

Upload Photo or Video File

Data will be processed by Otter Records Research Group, Department of Wildlife, Humboldt State University, Arcata, CA, 95521 or; phone 707 826-3439 fax 707 826 4060 (Version 8.4.10; update 6.10.16).