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Changes in abundance and distribution of nesting Double-crested Cormorants in the SF Bay Area

By Wendy Coy

Changes in abundance and distribution of nesting Double-crested Cormorants in the SF Bay Area

By Wendy Coy

Report spurred by nesting disruptions shows Cormorant recovery

From the latest edition of Marine Ornithology: In the Bay Area, the Double-crested Cormorant population has recovered from significant declines to reach population sizes comparable to those from the late 19th century, when only one colony offshore at the Farallon Islands was known. We were especially elated to observe that on the colony at Hog Island on Tomales Bay, formed in 2001, has become the largest in the study area since 2011.

ACR was pleased to co-author this report on the changes in abundance and distribution of nesting Double-crested Cormorants in the SF Bay Area from 1975-2017. The report was spurred by severe nesting disruptions observed during the construction of the new Bay Bridge. Download the full report from Marine Ornithology >

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Journal cover photo: by Mark Rauzon
Teaser photo of Double-crested Cormorants near Hog Island: Richard James – coastodian.org

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