“SAN FRANCISCO (KGO) — Volunteers are helping visitors spot Blue Herons and their chicks in Golden Gate Park over the next few weeks. The nests at Stow Lake in Golden Gate Park have seen 179 herons over the years. They court, build their nests, mate, and lay eggs between January and March. By April some of the nests have chicks, and this year there are six nests.
Come see the herons at Stow Lake at Golden Gate Park this Saturday and for the next six Saturdays from 10 to 1. For more information:
sfnature.org or 415-205-0776.”
Source: Volunteers helping visitors spot Blue Herons and their chicks in Golden Gate Park | abc7news.com
golden gate park: views from the thicket 
Definitely a banner year for these guys. I still haven’t heard a guess as to why they moved from one Stow Island to another.