Your browser does not support JavaScript.

Join Us on Facebook Join Us at MeetUp Follow Us on Twitter
California Quail
 

Programs:

Monthly Programs

Our monthly educational meetings include guest speakers, unusual bird sightings, refreshments, and conversation. Visitors are always welcomed!

Meetings are held on the first Thursday of every month (except July and August when we take a summer break) in the Camellia Room at The Gardens at Heather Farm, 1540 Marchbanks Drive, Walnut Creek. You are welcome to join us for the entire meeting or just the Educational Program.

6:30 p.m. Doors open
7:00 p.m. Birding Information
7:25 p.m. Chapter Announcements and Business
8:05 p.m. Educational Program

Thursday, February 1, 2018: A Bird's Rainbow - Bob Lewis

Birding Information: Thousands of houses currently proposed for development over 4-square miles (about 2,800 acres) of south Antioch would impact beautiful hills, the Sand Creek riparian corridor and endangered species habitat. Save Mount Diablo Land Use Manager Juan Pablo Galván will talk about what’s happening and how MD Audubon members can be part of grassroots advocacy efforts that will protect this important area.

Main Program:
 
A Bird's Rainbow - Bob Lewis
 
Many birds are brightly colored, others use patterned feathers for camouflage. How do these colors originate? What’s the difference between colors from pigments and physical colors? From Yellow warblers to Anna’s Hummingbirds, from Snow Geese to Brewer’s Blackbirds, each species makes unique use of the feather colors it possesses. What do the colors indicate to other birds? And do birds see the same colors we do? Bob will unravel some of the mysteries of color in birds with a little chemistry, a bit of physics, and a lot of brightly colored slides. Photos below by Bob Lewis.

KING PENGUIN SAFFRON TOUCANET RED-HEADED BARBET

The pigment that creates the yellow color in King Penguins is still undefined. Saffron Toucanet’s yellow feathers are colored by carotenes in the food it eats. The Red-headed Barbet operates a chemical plant in its body to convert yellow carotenes to red pigments.

Bob Lewis trained as a chemist and worked for Chevron for 33 years. He’s taught birding classes in the Bay Area for over 25 years, and served as the chair of Golden Gate Audubon’s Adult Education Committee. Currently he’s teaching Birds of the Bay Area with Rusty Scalf, and next month will begin the fifth class of Master Birding at the California Academy of Science. He loves to travel and photograph birds, and last year chased brightly colored birds in Cuba, the Dominican Republic and Colombia.

More detailed information about the February 2018 program will be available in our February 2018 Quail newsletter, available mid-January.

Thursday, March 1, 2018 Program: Birds of Alaska - Norman Kikuchi

Contact Webmaster   |   © Copyright   |  Mount Diablo Audubon Society - All Rights Reserved  |   Privacy