Photo by William Dreskin




















                                                                                                          Photos by William Dreskin

William Dreskin  is an award-winning fine art photographer.  His articles and photographs have appeared in books and magazines including the Sierra Club magazine, Sierra, Travel and Leisure, Marin magazine, Bay Nature magazine, and American Art Collector and his photographs have also appeared in calendars and have been exhibited in numerous galleries and national exhibitions.  His photographs are in private and corporate collections in the US and Europe.  


To see more of William Dreskin's fine art photography, please visit 


William Dreskin Fine Art and Photography
P.O. Box 749
Fairfax, CA 94978    
(415) 457-3949




Mt. Tamalpais State Park Science Quest Day

Sponsored by Friends of Mt. Tam in Partnership with California State Parks and One Tam


Become One with Nature

Date and time

Sat, October 1, 2022


10:30 AM – 12:30 PM PDT


Join Wendy Dreskin on an exploration of the shady Cataract Trail which runs along Cataract Creek through Douglas Fir forest. We'll stop to learn about trees, ferns, birds, butterflies and other insects, and anything else of interest that we encounter. This is a chance to learn about Native American uses of plants, what plants butterflies lay eggs on, who David Douglas was and why so many plants are named for him, and more. Suitable for families with children who are interested in nature and are comfortable hiking 2.5 miles.


Free but pre-registration required.

Point Reyes Institute Class: Butterflies for Beginners  

Class date / time: 

Sunday, April 24, 2022      10:30 AM – 2:30 PM PDT


Wendy Dreskin



Non-Member Fee: 



Muddy Hollow Trail,  Limantour Road, Point Reyes National Seashore

Explore the butterflies of Muddy Hollow from swallowtails to checkerspots and blues! Observe their behaviors and identify host plants.


From swallowtails to blues, we will search for a variety of species and observe behaviors like puddling, nectaring, and maybe even egg laying. We’ll learn to recognize various native host plants like alders, ocean spray, milkmaids, sticky monkeyflower, yarrow, and purple needle grass as well as introduced plants that native butterflies have adapted to like English plantain. We will also look at native and non-native nectar plants including coastal hedge nettle, California blackberry, wild radish and thistles.


Butterflies we have seen during previous April classes in Muddy Hollow include Western Pine Elfins, California Ringlets, Red Admirals, Two Banded Skippers, Mylitta Crescents, Mourning Cloaks, and Painted Ladies.


Class includes an opportunity to view a number of butterfly and caterpillar field guides and learn the pros and cons of different resources.


This class is great preparation for the North American Butterfly Association annual butterfly count in June, the butterfly community’s equivalent of the Christmas Bird Count.

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                                                                                                   Photo by WilliamDreskin