Chordeiles Minor June 6 Dean's Meadow, 6400ft., Lassen Co., Calif. - A good number of nighthawks here, flying pretty high. Quite frequently can hear the "whu" of their dive. June 7 1mi N, 2 1/2 mi E Mahogany Peak, 5080 ft., Lassen Co., Calif. Nighthawks stated flying and diving well before dark while sun was still up. June 8 At 9 - 9:15 am., at least one bird diving in the distance. June 17 Elkh Lake, 4900 + - ft., Deschutes Co., Ore. - There are 2 nighthawks flying over camp, and diving and booming a lot. Both are diving. Their "peck" notes seem to be in different pitches. June 18 I have noticed the curious flight of these bird several times. Occasionally they give their wings a few very fast flaps, quite jerky. This is after from 3 to 15 normal, rather slow beats. One is soaring a good little here. Two birds in flight now (7:30 pm). Just observed one dive directly toward the other June 19 One, at least, flying and diving on this inclement evening. Precipitation falling, a mixture of rain, sleet, and snow. 8pm. Completely overcast, cold. June 21 N Santiam River at Bengalow Creek, 2500 + ft., Linn Co., Oregon. Flushed 2 birds close together on ground. One flew just a few feet and landed, then flew again. The other flew up, "peck'd" several times, and chided at, but not very near, me.