Field Notes Doug Bell Humboldt Co., Calif. April 9, 1984 out & hunt? The wailing varies greatly in pitch - maybe the falcon is not in a pothole, sounds as if it's sitting in a smog. Intermittent wailing over 2 minutes, 09:00 - just saw a peregrine fly up into lower tree on right of cliff - same level as pothole. Sat for a minute, then flew back across rock & out over ridge to SW. 09:00-09:30 - No peregrine activity whatsoever. 09:46 - still no activity. Todd is coming down, so maybe we'll climb the rock now. 10:00-11:00; Climbed down into large pothole. As we approached rock ledge from above saw tiercel first - he screamed weakly, circled about in front of rock. Then the falcon (?) got up. Todd thinks she launched off from a tree on right of rock, near their favorite perching spots. The birds did not scream much. Todd recorded them. No defense as I climbed into the pothole. Pothole is very clean - no scrape to speak of, few footprints, one or two whitewash marks. Possible rat tail sign. Tail sign of a rodent. Only after I was at base of rock, coming around to the left of it did I hear the female give her loud, raspy kek-kek-kek. I didn't know what to think. Either 1) the falcons are using another pothole or 2) they didn't lay this year. Judging from behavior so far, I think it's #2. 11:00 - 12:00. No sign of Peregrines. 13:50-14:15. No sign of Peregrines. Then suddenly heard screaming. Saw tiercel fly up to smog or lower right of cliff - low. Heard c-chucking, then wail of 4. She appeared at pothole on right side of rock, just at the left upper corner of the huge overhang (see diagram). She sat on