Cogswell 1950 Chordeiles minor 3 July 7 (cont.) but still glistening eyes. The camouflage was much better than that of 4 on the June 21 nest, when we finally drove her off, after care- ful approach to within 8 ft.; she fluttered only briefly along the gravelly ground & came to a stop on a sloping boulder, with her wings still outspread against the rock. when approached again she repeated the procedure, but this time took to the air & circled the vicinity several times before alighting cross-wise (!) on the limb of a 30 ft. high Jeffrey pine about 100 + ft from the nest & down slope. she faced into the rather brisk evening breeze & seemed to have no difficulty [now 2] holding this perch. The eggs were of almost exactly the same hues & pattern as the large gravel pieces about the nest. Just as we were leaving, after 4 had been off about 10 min., the 5 drew closer (he had been "peenting" over open & brushy slopes in distance) & began power diving low over the nest area, swerving to chase the 4 when she flew slightly. He was not "booming" here, or at least not doing the pull-out; but was apparently trying to drive the 4 back on the nest. after about 4 such swoops, she went to the nest while we watched & he immediately mounted & ceased swooping.