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Featured Wildlife

Wood Duck Boxes

Wood ducks on box

Wood ducks typically nest in holes of trees but duck boxes can also provide a great nesting site. Colusa NWR is a great place to spot wood ducks in the spring and summer. Walk quietly on the trail and you might see them!

Visit Sacramento NWR's wildlife page

About the Complex

SNWR Complex - Contact Us

Complex Graphic

The Complex headquarters are located at Sacramento NWR, in Willows, CA. CONTACT US: Sacramento NWRC, 752 County Rd 99W, Willows CA 95988. Phone:(530)934-2801. Email:

Colusa is managed as part of the SNWR Complex - Contact Us.

Learn more about the complex 

About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.

Learn more about the NWRS  

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Page Photo Credits — All photos courtesy of USFWS unless otherwise noted., Mike Peters
Last Updated: Dec 16, 2014
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