Sighting for March 28, 2018

David H. Bartholomew

San Bruno Mountain
San Mateo County, CA

Warm day, very little breeze for a change. Lots of wildflowers in bloom, butterflies nectaring mostly on yarrow and lomatium. Main attraction today was the Bay Checkerspot which is being reintroduced after an absence at this location for many years.

  • Pipevine Swallowtail 2
  • Anise Swallowtail 36
  • Cabbage White 2
  • Large Marble 1
  • Bramble Hairstreak 6
  • Brown Elfin 1
  • Moss' Elfin 12
  • Spring Azure 5
  • Acmon Blue 1
  • Field Crescent 1
  • Edith's Checkerspot 18
  • California Tortoiseshell 200+
  • American Lady 16
  • Painted Lady 1
  • Common Checkered-Skipper 1

Edith's Checkerspot

Anise Swallowtail

Bramble Hairstreak

Bramble Hairstreak

Field Crescent

Moss' Elfin