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Just For Ducks  |  Barn-less" Owls  |  Bats On Our Bridges  |  Keeping Up With the Kestrels  |  Wildlife Habitat Improvement

Keeping Up With the Kestrels

American KestrelAmerican Kestrel

The American Kestrel is North America's smallest and most colorful falcon. Unfortunately, researchers believe the kestrel's population status is changing from "common" to "of concern". The Peregrine Fund's new American Kestrel Partnership is a research and conservation initiative supported by Audubon chapters, researchers, families, and anyone else interested in kestrels. Mount Diablo Audubon Society has supported the Kestrel Partnership by erecting and monitoring nestboxes. Learn how you can get involved at: http://kestrel.peregrinefund.org.

The Kestrel Campaign

In response to long-term population declines of American Kestrels in North America, members of the Peregrine Team of Pine Canyon (volunteer docents from area conservation groups including MDAS) have expanded their efforts to help another falcon, the American Kestrel. By building and establishing nest boxes in the Mt. Diablo region, doing annual monitoring and data collection for nationwide analysis, and using public outreach and education about the effects of rodenticides on area wildlife, we hope to help local populations recover and increase.

To date, five kestrel boxes have been installed in Walnut Creek: one in Rudgear Park, two in Arbolado Park, and two in the Pine Creek Detention Basin. Plans are firming up to place more boxes on John Muir Land Trust and Save Mount Diablo lands as well as other area locations, once permission is granted.

Supervisors at the sites where boxes have been places have given their assurance that no rodenticides are used. However, a remaining problem might be the use of poisons by park neighbors, so a second mission is to distribute informational pamphlets to neighbors. Additionally, each kestrel box has a laminated sheet that explains the ins and outs of kestrels and provides an email for anyone who has questions.

Historically, American Kestrel numbers are presumed to have declined due to DDT, pesticides, rodenticides and heavy metals usage; the loss of nesting cavities due to urbanization and competition with European Starlings; climate change; and predation by Cooper’s Hawks and other birds of prey. However, researchers lack sufficient data to understand why these long-term, widespread population declines are occurring, so the citizen science community is vital for nest box programs, providing important data for research. For general information: kestrelcampaign@gmail.com

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