blog posts Amphibian Field Technicians (Summer 2022), USDA Forest Service (Sierra Nevada, CA; apply Nov. 5-12) Oct 27, 2021 1:45 pm146 views The U.S. Forest Service is hiring seasonal biological technicians for a long-term bioregional amphibian monitoring program focusing on the Sierra Nevada yellow-legged frog (Rana sierrae) and the Yosemite toad (Anaxyrus canorus).