Snowy Plover Update - August 12, 2022

August 12, 2022 Posted by: Matt Lau

Overview

Hello Ploverites!

We now only have a few western snowy plover broods left to monitor—these plover hatchlings are due to fledge within the next 2.5 weeks and all can be found between Abbotts Lagoon and North Beach parking lot. Breeding activity on all other sites has wrapped up and plovers have joined the increasing number of winter flocks on Point Reyes beaches. Migrants from inland breeding populations and populations along the Pacific Coast are coalescing into these flocks, which will persist until February and March when they begin dispersing to their breeding grounds again.

Recently fledged juveniles are beginning to disperse and are being observed outside of Point Reyes National Seashore! For example, a fledgling (av:aa) that hatched from North Beach on May 9, 2022, and fledged on June 6, 2022, was observed at Ten Mile Beach in MacKerricher State Park in Mendocino County last week. A similarly banded 2022 fledgling (va:aa) was observed near Half Moon Bay last week as well.

Here are updates organized by beach sites:

Kehoe (K):

There is no breeding activity remaining on this site. There is a growing winter flock near the Abbotts Lagoon mouth.

Abbotts Lagoon Restoration Area (RA):

No breeding activity remains at this site.

Abbotts Lagoon to North Beach parking lot (NP):

Five to six chicks from four different broods are active on this long stretch of beach. Winter flocks can be found scattered along this site.

North Beach (NB):

No breeding activity has been detected on this site this year.

South Beach (SB):

No breeding activity has been observed at this site this year.

Limantour (L):

No breeding activity remains on this site. A couple winter flocks can be found here—this site typically has the park's largest winter flock in December–January.

If you have any questions, please feel free to contact Matt Lau, the park's Snowy Plover Ecologist, via email.

CURRENT STATS:

  • 34 total nests this season
    • 0 active nests
    • 22 hatched
    • 12 failed nests
  • 5–6 chicks on the beach!
  • 24 chicks confirmed fledged

A photo of male National Park Service biologist kneeling in the sand and bending over to check small plover eggs in a nest surrounded by grayish-green plants.© Gina Graziano
NPS biologist Matt Lau checking a snowy plover nest for signs of hatching. August 2022.

A photo of three small black-speckled, beige-colored eggs on sand surrounded by plants with grayish-green, lobed leaves.The last active nest of the 2022 breeding season. This nest was unfortunately deemed nonviable—the eggs showed no sign of hatch several days after it was projected. The female of this nest has had a history of nonviable eggs. August 2022.


The National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (if available) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. For more information: https://www.nps.gov/disclaimer.htm

Point-Reyes, Point-Reyes-National-Seashore, bird, birds, plover, plovers, snowy-plover, snowy-plovers, western-snowy-plover, western-snowy-plovers, Charadrius-nivosus, Charadrius-nivosus-nivosus



Last updated: August 12, 2022

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Point Reyes Station, CA 94956

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