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 better coverage this time and we saw a total of 96 species, which is a good number for September, despite not seeing too many migrants. Our overall cumulative total stands steady at 251. We got to area 4 just as the sun was coming up and were rewarded with a Barn Owl over… Read More » We had 88 species, although that is a bit low for this time of year. Our overall cumulative total remains at 251. Despite somewhat low numbers, we had several good birds, including a Turkey Vulture in area 5 flying over the lagoon by Crest Canyon, quite a few Ridgway’s Rails (in areas 1 and 2),… Read More » If you have been to the park lately you might have noticed these beautiful plants blooming. Its scientific name is Hesperoyucca whipplei but it also goes by chaparral yucca, Quixote yucca, foothill yucca, Spanish dagger, and even Our Lords Candle (because of the beautiful glow when the sunlight was directly behind the blossoming plant). One… Read More » We had a great count this month of 121 species, including 2 new ones. Vesper Sparrow was seen in Area 3, and Acorn Woodpecker was found in Area 5. This brings our cumulative total to 251 species! Click here for the PDF document with results for the April 2021 count. Click here for the PDF document… Read More » We had a good count of 114 species in March, which is our second highest total for that month! Our cumulative total remaining steady at 249. Click here for the PDF document with results for the March 2021 count. Click here for the PDF document with the detailed monthly results through March 2021. The featured image… Read More »September 2021 San Dieguito Lagoon Bird Survey Results
August 2021 San Dieguito Lagoon Bird Survey Results
Mighty Moths
April 2021 San Dieguito Lagoon Bird Survey Results
March 2021 San Dieguito Lagoon Bird Survey Results
