Mockingbird (3 xun - all singing) May 14, 1938 weather today clear, hot, with medium west wind prevailing from the west. Spent morning in large dry wash E of camp about 2 miles. Went in search to photograph + the desert tortoise that Johnson saw & last night and earlier this morning. Arrive at the hole where they were found, but they were gone hrs. after Johnson left. Combed area thoroughly for ooys around, but could not locate. Shot on way a & Scott Oricle* that Crow put up. Found a used nest of this yr. almost undoubtedly of this y ashrike*. On way back found a rattlesnake in shade of Joshua tree; spent hrs. photographing it +. Found a nest 6' up in Joshua; is very bulbly and probably is a Sage Thrasher. Is a nest of this yr and has had young in it; found feather scales present; Johnson shot a couple fledglings near camp. In the afternoon also went to the dry wash, but much further east. Near spent some time photographing the nest and eggs of a Brewer Sparrow + and a Desert Sparrow + as well as habitat & flora photography At dusk while loading plate holders heard a Poorwill calling close by.