0:00 / 0:00
Report

Contributor

Date

Location

Iron Horse Regional Trail, Walnut Creek US-CA 37.89893, -122.05649
Contra Costa, California, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 37.89893, -122.056494
Age
Not specified
Sex
Not specified

Observation details

Colony nesting in Walnut Creek bypass, under bridge near Newell. Lots of active nests.

Technical information

Camera
Microphone
Accessories
Original file size
29.62 MB