September 17, 2020
The last two nests of the season hatched just as the Woodward Fire began; one of these broods was banded while the second brood hatched without the usual banding process. We ended the season with 10 fledglings from 39 nests! Considering the abysmal low survival rate for chicks and nests during the first half of the season, we can consider this a success. The next few weeks will involve regular surveys of winter flocks that have coalesced on Point Reyes beaches.
August 11, 2020
The breeding season is nearing its end and winter flocks are beginning to increase in size. In mid-August, these flocks can number up to 30 to 40 plovers; for example. During these last few weeks of the breeding season, snowy plovers have been experiencing higher reproductive success compared to most of the past four months. More specifically, chick survival has been higher and the number of common ravens observed on surveys has dropped.
July 20, 2020
The park's plover breeding population has increased significantly to 39 adults. While nest success is around average, chick survival has been significantly low this year. But we still have a few nests to hatch in the coming weeks and we recently had several nests hatch. Park staff have also observed snowy plovers congregating into their "winter" or nonbreeding flocks in the past two weeks.
June 28, 2020
This is the second update for the month of June and breeding activity has significantly picked up on Point Reyes beaches. Since the June 6 update, we have found an additional 13 new nests and have added two fledglings to the scoreboard. Nest success has been around average, but chick and fledgling survival has been poor so far. Only two out of 15 total chicks that have hatched this season have made it to fledging (not including the three chicks currently on the beach).
June 02, 2020
This is the first update of the 2020 snowy plover breeding season. We have had an active breeding season so far: 21 total nests, of which three have hatched and 14 failed. Causes of nest failure include: depredation by common ravens (n = 8 or 57%), nest abandonment (n = 4) and tidal overwash (n = 1). One nest failed for unknown reasons, but it was likely taken by a predator.