The San Dieguito River Valley Regional Open Space Park Joint Powers Authority, also known as the San Dieguito River Park, is the agency responsible for creating a greenway and natural open space park in the San Dieguito River Valley. The vision of the River Park is to preserve and interpret the natural and cultural resources of the river valley from the river’s source at Volcan Mountain, north of Julian, to the Pacific Ocean in Del Mar.
The San Dieguito River Valley is rich in all sorts of natural wonders through our Nature Notebook. Learn more about specific resources by exploring the categories below. Be sure to check the Events Calendar to see what upcoming opportunities you have to learn more about these natural resources from experts in the field!
Latest Posts from the Nature Notebook
We had one new species in the August count. Two juvenile Gull-billed terns were seen on Sunday August 2nd. This brings our cumulative total species, over 10+ years of the count, to 246 species. All of the Least Tern fledglings have now departed the nesting sites, that brings the total to 10 chicks. We wish… Read More » We had a pretty good month with 91 species. Usually we are in the 70’s or 80’s for July. No new species, so we are steady at 245 cumulative species. This month is also very special, for the first time since the Least Tern nesting sites were established at the San Dieguito Lagoon we have… Read More » This months bird survey had a total of 89 species, which is good for the quiet month of June. Lots of juvenile birds out! Sightings of special interest included Lazuli buntings and an Ash-throated flycatcher (area #1), Blue Grosbeaks in a couple of areas, American and Lawrence’s Goldfinch in area #3 and Least terns in… Read More » The San Dieguito Monthly Bird Count this month was not as spectacular as the April count but still very good. They had a total of 107 species, holding at 245 overall. Not so many migrants passing through. Not as much courtship associated singing. But summer breeders are settling in and are busy nesting and raising young.… Read More » A plethora of native wildflower species are showing off their colors and variable shapes in pockets throughout the San Dieguito River Park. While we generally admire these flowers for their unique visible displays they are so much more than just their looks. Native wildflowers are performing a number of essential functions and roles within their… Read More »
August 2020 San Dieguito Lagoon Bird Survey Results
July 2020 San Dieguito Lagoon Bird Survey Results
June 2020 San Dieguito Lagoon Bird Survey Results
May 2020 San Dieguito Lagoon Bird Survey Results
The Value of Our Native Wildflowers
