Sound Ecology is a series of audio journeys that celebrate and highlight our environment. Topics range from birds, fish and trees to whales, wetlands, bears and wild bees. Sound Ecology is produced by Jessica Eden.

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On this segment of Sound Ecology, Naturalist Ken Burton explores the world of raptors, from providing a working definition for this group of birds to an explanation of convergent evolution.

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This segment of Sound Ecology shares remarkable facts about the ubiquitous coastal resident, the harbor seal.


Research Ecologist Bill Zielinski celebrates the mountain beaver. This little known mammal is an important part of ecosystem health.

US Fish and Wildlife Service

Aleutian cackling geese are abundant in our area this time of year. This segment of Sound Ecology highlights the conservation efforts that led to the successful recovery of this once-endangered bird.

Jessica Eden

What a phone can capture on a random day at the Arcata marsh....  click Sound Ecology for murmurations at the marsh. 

Much of Humboldt County's thirst is quenched by the Mad River. And, despite its relatively small size, the Mad River provides vital habitat for a surprising diversity of species. Fisheries Biologist Katherine Osborn shares this week's Sound Ecology audio postcard.

Mike Baird

On this segment of Sound Ecology, Ornithologist Mark Colwell features one of our dynamic coastal residents, the western snowy plover.

Marine Protected Areas conserve the diversity and abundance of marine life, the habitats they depend on and the integrity of marine ecosystems. California's remarkable MPA system protects the productivity, wildness and beauty of our coast and ocean. 

This segment of Sound Ecology highlights regional marine conservation.

On this episode of Sound Ecology, naturalist Michael Kauffman discusses the magnificent conifer biodiversity in the Klamath Mountains.

Jessica Eden

Terry Roelofs talks about the delights of following cyclical, seasonal events in your region. 

Jessica Eden

Naturalist Ken Burton highlights this season's magnificent shorebird migration along Humboldt Bay.

This segment of Sound Ecology highlights native bees, including nuances of their behavior, life history and ecological importance.

This segment of Sound Ecology features Naturalist Ken Burton discussing two songbirds, the orange-crowned and Wilson's warbler.


The Pacific marten and the fisher play important roles in the ecological health of forests. These two mammals are highlighted in this segment of Sound Ecology. Local Research Ecologist Bill Zielinski wrote this segment.

The Allen's hummingbird is among the first migratory birds to return to our region this time of year. Naturalist Ken Burton highlights this special bird -- and shares some unexpected details about who joins them on their migratory journey.

In this segment of Sound Ecology, Naturalist Carol Vander Meer highlights blooming dune flora in the Humboldt Bay region, including the endangered wallflower.

Jessica Eden

Wildlife Biologist Gretchen O'Brien highlights the tens of thousands of migratory shorebirds that rely on Humboldt Bay. She includes tips for best times of the day to enjoy the spectacle of shorebirds at the Arcata Marsh.

An audio postcard highlighting the enigmatic American Dipper. Naturalist and author Ken Burton  wrote this segment.

Jessica Eden

The Arcata Marsh and Wildlife Sanctuary is home to an impressive number of migratory and resident bird species. The sanctuary fills important habitat needs for the Pacific Flyway and functions as a world renowned wastewater treatment facility.

Fisheries guru Terry Roelofs celebrates the tiny, colorful and little known three-spined stickleback.