San Francisco Bay

Osprey Days June 24-26 2022


San Francisco Bay Osprey Days is headquartered in 2022 on Mare Island and at the Mare Island Shoreline Heritage Preserve located in Vallejo, Calif. Join us June 24-26, 2022 for guided hikes, driving tours and boat trips to see nesting osprey up close and plenty of fledglings and adults in the sky above.

we will continue to make every effort to plan our schedule with COVID19 precautions, so please comply with them for the your safety.

Here’s an example of our schedule from 2021

June 25-27, 2021 Schedule (pdf)

10th Annual Osprey Days on Mare Island

Friday, Saturday & Sunday, June 24-26, 2022

2021 SPONSORS: Southern Land Company the master developer for Mare Island, Dolphin Charters and Belinda Seidemann and Chip Gribble. Visit dolphin charters or call 510-527-9622 or 1-800-472-9942 to reserve for one of the 4 boat trips during our San Francisco Bay Osprey Days trips Saturday, Jun 25 and Sunday 26, 2022


Please make your donation to Osprey Days and the Bay Area osprey tracking tools project payable to: 
Mare Island Heritage Trust
816 Branciforte St. 
Vallejo, CA 94590

Donate  online:
Call/text: 707-249-9633
Email: myrnahayes@mac.com

Photos: lower left and this; Eric Dugan,

Old Sperry Mill, Vallejo, CA

Photo: Jimmy Sarmiento,

Glen Cove, Vallejo, CA


June 25-27, 2021