Since January 2010, a group of skilled birders, led by volunteer Jayne Lesley, has been conducting monthly bird surveys at the San Dieguito Lagoon. Check here for updates on the monthly distribution of birds at the Lagoon!
Posts about Lagoon Bird Surveys from the Nature Notebook

March 2021 San Dieguito Lagoon Bird Survey Results
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 »
December 2020 San Dieguito Lagoon Bird Survey Results
In December we had a total of 118 species, no change in the cumulative total. We are still at 249 species overall. This month also marks the 11th year of bird counts within the San Dieguito Lagoon. Big thanks to everyone that donated their time over the years to document all the great birds that… Read More »

October 2020 San Dieguito Lagoon Bird Survey Results
We had another new species in October! A Green-tailed Towhee! Note we had 115 species which is quite a record for October. Normally we see around 90-100 species. This brings our cumulative total species, over 10+ years of the count, to 249 species! Click here for the PDF document with results for the October 2020 count. Click here for the… Read More »
September 2020 San Dieguito Lagoon Bird Survey Results
We had two new species in September. Three Baird’s sandpipers in area#3 and a Tricolored Heron flying by the lagoon outlet. This brings our cumulative total species, over 10+ years of the count, to 248 species! Click here for the PDF document with results for the September 2020 count. Click here for the PDF document with the detailed monthly results through September… Read More »
August 2020 San Dieguito Lagoon Bird Survey Results
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 »