Field Notes D. A. Bell 28 March 1990 flew back to N. tower, sat on hand rail. Screamed hunger, launched off bridge. The tiered mail, then returned to nest after ca. 1-2 minutes. He first plopped down on the light egg, rolled it under him, then rolled the darker egg from his right side under his body. 12:05. Falcon back on rail of N. Tower. Falcon sitting relaxed on handrail of N. Tower. S somewhat light yellow legs + cere, yellow eye patch. Clean breast, very neat barred flanks, belly spotting. Thick, wide malar, with just slight white patches behind malar, essentially breaking a clean cap from bottom of malar to back of head. i.e: Otherwise, cap would be complete. Creamy breast, w/ just a tinge of very light pink. 12:40 - Falcon looked at something I keen interest, then launched off tower. Gave couple &-chuck calls. Circled directly over limber, then over cove slopes. Went back to N Tower, but landed on rail at very top this time. Defeated, then flew off, landed on hand rail of suspension cable, 2 cables down from top of N. Tower. 12:45. Tiered still sitting tight on eggs. He's been on nest since the falcon left it to chase the Redtail at 12:00. The tiered definitely has a yellower cere than the falcon. 12:50. Falcon moved back to hand rail on N. Tower, 12:54. Falcon disappeared. 12:55. Tiered fussing with the nest. Interesting, tiercel has sat tighter on nest than female, covering & incubating