Wildlife biologist and author Sophie Osborn will deliver a free, illustrated lecture based on her book “Feather Trails: A Journey of Discovery Among Endangered Birds,” 7 p.m. Wednesday, Oct. 16 in Fleischmann Auditorium at the Santa Barbara Museum of Natural History.

The program is presented by the Santa Barbara Audubon Society in cooperation with Friends of California Condors Wild and Free.

In her talk, Osborn will discuss the triumphs and tribulations of being a wildlife biologist and explore the threats that imperil these birds, threats that are harmful to humans, too.

She will share her personal experiences reintroducing endangered Peregrine falcons, Hawaiian crows, and California condors to the wild, and address what led to the endangerment of these three species, recounting the efforts of biologists to recover their populations.

Osborn is an award-winning environmental writer and wildlife biologist whose work has included the study and conservation of more than a dozen bird species in the Americas.

She contributed to reintroduction efforts for several endangered birds and served as the field manager for the California Condor Recovery Program in Arizona for four years.

Osborn’s books include “Condors in Canyon Country,” which won the 2007 National Outdoor Book Award for Nature and the Environment.

Osborn’s writings are available at www.wordsforbirds.net. For more information, call Santa Barbara Audubon Society, 805-964-1468.