HERON WATCH 2026- HUGE SUCCESS!
Heron Watch – our two month program of showing the Great Blue herons and their chicks at Blue Heron Lake was a huge success this year. Volunteers staffed high powered spotting scopes and answered questions at two locations: Blue Heron Lake Boathouse- four active nests and Heron Island #2 located near the Waterfall with one active nest!
We were able to show the four nests on the large Pine Tree on the island opposite the Boathouse. Each nest held approximately 3 chicks for a total of 12 chicks! The last chicks left by June 12th.
Around the corner, on an island near the waterfall with one dead tree and one healthy tree, a pair of Great Blue Herons built a nest with 3 chicks. The Herons have nested in the healthy tree since 2024. On April 23, 2026, after a few days of rain, the nest fell about 3 feet down and lodged on another branch! Unfortunately, one chick fell out and perished. The remaining two chicks fledged by May 15th.
On this same island, we spotted another pair building a nest in the same tree on 4/25/26. The pair were last seen on May 2nd, then abandoned the nest shortly after.
2026 was a banner year for the Blue Heron Lake herons- 5 nests with 14 chicks! The photos of the herons at both islands are featured on this page!
Nancy H. DeStefanis 6/30/26
We were able to show the four nests on the large Pine Tree on the island opposite the Boathouse. Each nest held approximately 3 chicks for a total of 12 chicks! The last chicks left by June 12th.
Around the corner, on an island near the waterfall with one dead tree and one healthy tree, a pair of Great Blue Herons built a nest with 3 chicks. The Herons have nested in the healthy tree since 2024. On April 23, 2026, after a few days of rain, the nest fell about 3 feet down and lodged on another branch! Unfortunately, one chick fell out and perished. The remaining two chicks fledged by May 15th.
On this same island, we spotted another pair building a nest in the same tree on 4/25/26. The pair were last seen on May 2nd, then abandoned the nest shortly after.
2026 was a banner year for the Blue Heron Lake herons- 5 nests with 14 chicks! The photos of the herons at both islands are featured on this page!
Nancy H. DeStefanis 6/30/26
ISLAND OPPOSITE BOATHOUSE
4 NESTS WITH CHICKS!
Chicks spotted flying and hunting on May 16, 2026
ISLAND NEAR WATERFALL
NEST 1 - 2026 PHOTOS
NEW NEST #2- Construction began 4/25/26!
NESTS 1 & 2 - ISLAND BY WATERFALL
Every Spring, SF Nature Ed conducts Heron Watch, a free Observation program, through spotting scopes, for the public.
Please pre-register on the home page starting March 31, 2026.
Please pre-register on the home page starting March 31, 2026.
RAIN CANCELS! Trip comped for later date.
We do not allow dogs, cats, birds, etc. on our field trips to observe wild birds. If you bring an animal, you cannot attend the field trip and your reg. fee will be forfeited. Please do not bring extra people with you who have not registered as we cannot accommodate them. The deadline for registration is midnight of the Thurs. before the field trip. Thanks for your cooperation.
The Great Blues of the Golden Gate
SF Nature Education's new film on YouTube & http://www.sfnature.org
Directed by Joy Chang, produced by Nancy DeStefanis, Exec. Director, SFNE
SFNE VOLUNTEERS AT HERON WATCH 2026
All photos Linda Kobayashi unless specified.
Map of Observation Sites with spotting scopes for Heron Watch 2026:
Boathouse - 4 nests
Island near waterfall- 2 nests
Boathouse - 4 nests
Island near waterfall- 2 nests
Follow signs from the Stow Lake Boathouse. Click here for a printable map.
We start our interpretive program in April. The public can experience the excitement of these four foot tall birds with six foot wingspans flying in and out of the nests-brooding the chicks, feeding the chicks, etc. Naturalists and interns from San Francisco Nature Education are stationed at the observation site with spotting scopes, ready to offer spectacular views into the Great Blue Heron nests and answer questions.
Click here for article by Bay Nature Magazine about the Great Blue Herons at Stow Lake and the Heron Watch Saturday program, with embedded video interview with Nancy DeStefanis.
Click here to watch a video where interns share their experience with our internship program.
Click here to view or download "Great Blue Heron Colony Nesting and Fledging Chronology, 1993-Present".
Click here for article by Bay Nature Magazine about the Great Blue Herons at Stow Lake and the Heron Watch Saturday program, with embedded video interview with Nancy DeStefanis.
Click here to watch a video where interns share their experience with our internship program.
Click here to view or download "Great Blue Heron Colony Nesting and Fledging Chronology, 1993-Present".
Interested in being a Heron Watch volunteer? Click here to download the 2025 application.
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Go heron-watching with SF Nature Education. Part of "The Bay Nature on The Air" program.
Duration: 02:45 / Produced by Rick Bacigalupi / Alternate video link / Flash Plug-in |

































