Coming Events
I am vaccinated against Covid-19. I can do talks and interviews in person or online (see Contact page to set one up).
27 Nov 2023: I will be interviewed for the DemystifySci podcast. This is only the interview date; the interview will go online later, probably in December. I'll post more details when I have them.

Clark's nutcracker south of Pinchot Pass, John Muir Trail.

Chance favors the prepared photographer.
Clark's nutcracker takes flight. Photos by Gwyn Sivertsen