In Orange County’s scrub country, the nights are ruled by quiet, creeping forms that specialize in navigating a low-light environment. One of them is the common poorwill. Like other nocturnal species, ...

For two weeks, I have written about Aristotle and his scientifically outrageous notion that birds hibernate. He was wrong about the five species of swallows that he knew in his Greek homeland. They do ...

Have you heard of caprimulgids — sometimes known as goatsuckers, nighthawks or nightjars (that jar the night with sound)? Many ranchers know at least one of them well, even if they don't have a name ...

Common Poorwill Bird Walk: 7 p.m. June 26, July 3 and 31, Mount Diablo. Meet at Mitchell Canyon Trailhead, 96 Mitchell Canyon Road, Walnut Creek. Denise Wight leads this four-mile, two hour hike. $6 ...