Conejo Open Space Foundation

Board members at the COSF booth at Native Plantpalooza & Eco Fest

Inaugural Native Plantpalooza & Eco Fest Draws Crowds of Plant Enthusiasts

On Saturday, October 1, COSF launched a live event as part of its popular Speaker Series: Native Plantpalooza & Eco Fest at Conejo Creek North Park. The first-year, free event, which was blessed with mild, sunny weather, featured beekeepers, butterfly experts, master gardeners, naturalists, and others. Attendees enjoyed presentations from Read more…

By Anne Russell, 3 years10/26/2022 ago

Archived Environment Plantpalooza Plants Native

Come Visit COSF’s Family-friendly Native Plantpalooza & Eco Fest October 1!

This free educational event with dozens of eco-related exhibitors will have lots of fun activities for the kids! Hosted by the Conejo Open Space Foundation on Saturday October 1, it will take place in Thousand Oaks at the Lakeside Pavilion area of the Conejo Creek North Park, from 9:00 a.m. Read more…

By Steve Clark, 3 years09/18/2022 ago

_Special Announcement Environment Wildlife

Monarch butterflies now listed as endangered: What we can all do to help them

The migratory monarch butterfly has been added to the endangered species ‘Red List’ by the International Union for the Conservation of Nature in mid-July 2022. This colorful butterfly is known for its spectacular migration of up to 2,500 miles from Mexico to Canada, taking several generations to complete the route. Read more…

By Steve Clark, 3 years07/25/2022 ago

_Special Announcement Accomplishments Environment Plants Native Speaker Series Video Animals Video Plants Wildlife

View the recording of Betina Loudermilk’s talk about the plight of the Western monarch butterflies and what you can do to help them survive

For COSF’s summer 2022 Speaker Series virtual presentation on June 8, butterfly educator Betina Loudermilk of Betina’s Little Farm & Butterfly Garden gave a fact-filled presentation about the East and West Coast monarch migrations and lifecycles. She discussed the mysterious resurgence of the Western monarchs and the grave threats they Read more…

By Anne Russell, 3 years06/10/2022 ago

_Special Announcement Environment Plants Native Wildlife

Ventura County Bans Sale of Tropical Milkweed to Protect Monarchs

Because of its role in spreading disease among Western monarch butterflies, tropical milkweed (Asclepias curassavica) has been classified as a “noxious weed” by the California Department of Food and Agriculture. That led to a June 1 notice of a ban by Ventura County Agricultural Commissioner Ed Williams on its sale Read more…

By Anne Russell, 3 years06/09/2022 ago

_Special Announcement Accomplishments Environment Speaker Series

View Dr. Sean Anderson’s talk about the impact of ‘global weirding’ in the Conejo Valley and what you can do to slow it

For COSF’s first 2022 Speaker Series virtual presentation on March 2, conservation ecologist Dr. Sean Anderson examined the multiple threats posed to the Conejo Valley by global warming—or “global weirding,” as he calls it because of the bizarre weather events it causes. Dr. Anderson, who chairs the Environmental Science and Read more…

By Anne Russell, 3 years03/05/2022 ago

Accomplishments Environment Fundraising Wildlife

COSF Completes $10,000 Wildlife Crossing Pledge; Adds Bonus Gift

Thanks to generous donations from members and supporters, COSF was able to add $6,800 to the $10,000 donation already pledged to fund the construction of the $87 million Liberty Canyon Wildlife Crossing over the 101 freeway. The additional money came from the Julia Osborn Gourley Memorial Fund, which COSF created Read more…

By Steve Clark, 3 years11/05/2021 ago

Accomplishments Environment Fundraising Wildlife

COSF Contributes another $2500 to the wildlife crossing of the 101 Freeway at Liberty Canyon

Most of us think of the wildlife crossing as only for the benefit of mountain lions, so that lions from different regions can mingle, reduce interbreeding and strengthen the gene pool of the population. In reality, the wildlife bridge will benefit many more species, including plants and birds! COSF is Read more…

By Steve Clark, 4 years06/14/2021 ago

Accomplishments Environment Speaker Series Video Animals Wildlife

Watch the recording of the talk: Changes in Bird Populations due to Urbanization over 25 Years

Dr. Daniel Cooper, who spoke to us via Zoom on Thursday evening June 10th, gave a scholarly presentation of his research into the changes of bird populations over the past few decades due to expanding urban areas. He finds that some species thrive in cities, some avoid them, and others Read more…

By Steve Clark, 4 years06/12/2021 ago

COSCA Environment

Thousand Oaks free Chipper Day: April 24

By Steve Clark, 4 years04/21/2021 ago