Otocoris alpestris March 27, 1/2 mi W Pinoli. f taking dust bath in edge of a small pathway through the grass. Several times Squatting low and fluttered in dust - dust seen to rise from spot. Stood up and shook dust out of feathers. ♂ standing nearby during. behind. Another pair seen working through grass, Q 15 AM gathering dry grass until a large mound projected on either side of trail - ♀ only - ♂ accompanying - both flew 50 yds Q deposited grass - exact spot not located.