If you're interested in using any of these photographs, please contact me. Send an e-mail to naturalhistoryphotos(at)gmail.com. Thanks!

Sunday, April 17, 2016

A busy Sunday afternoon

After Sunday chores, I took a short walk at Sonoma Valley Regional Park (in Glen Ellen).  There was a lot of breeding bird activity, and insects were visible in sunny spots.  [It reached 90°F in Cotati today!]

Here's a selection of images to represent the walk:


Juvenile Bewick's Wren (Thryomanes bewickii) note the shorter bill with yellowish color at the gape



Oak Titmouse (Baeolophus inornatus) with a bright green caterpillar in its bill (it flew into a nest hole with it, likely to feed young) 



Pipevine Swallowtail (Battus philenor) nectaring on Dichelostemma




Mournful Duskywing (Erynnis tristis) — look for the prominent white edges on the hind wings



Unidentified robber fly (Asilidae) with amazing metallic orange eyes!  Robber flies are sit-and-wait predators that feed on other insects.  (If you are familiar with this species, I'd love help with the identification.)

Although not from today, here's an older picture of a different robber fly.  It had just captured a butterfly in the Bodega Dunes (photographed 18 August 2010):


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