Master birder Mike Denny will guide participants on a bird walk at Whitman Mission National Historic Site from 6-7:15 p.m. Tuesday.
These walks are popular and well attended, said Renee Rusler, a ranger at Whitman Mission.
The majority of migrating birds spend only a brief time in the area before continuing their journey. The migration south in the fall is spread out; some species start their return trip as early as June, others wait until later in the fall.
Denny will discuss the impact of shorter days on the timing decisions of different species. He will also talk about raptor migration and how it works in the west. Binoculars are suggested, as are comfortable walking shoes. The walk lasts just over an hour. It is free and there is no entrance fee to the site.
In addition, the Visitor Center has returned to its operating hours of 8 a.m.-4:30 p.m.
The mission is at 328 Whitman Mission Road, 7 miles west of Walla Walla off U.S. Highway 12. For more details, call 509-529-2761 or visit nps.gov/whmi/.