September 16 [Day 22] It was again cloudless until 1300 when 70-100% diaphanous cirrostratus developed giving excellent observation conditions for the rest of the day. Again the temperature reached a high of 20C, and the wind was initially calm to NW becoming W gusting 20 km/h at 1300 but diminishing to light (<10 km/h) after 1700. Late in the day smoke haze developed for the first time this season. Once again morning movement was slow with just 4 raptor migrants recorded before 1200 when a concerted movement started that persisted to 1800 after which just 2 more birds were seen. Once again the flight was dominated by accipiters providing 98 of the day's total of 132 migrant raptors, with the 72 Sharp-shinned Hawks being the second highest total of the season. Seasonal highs to date were established for Broad-winged Hawk (4, including the first dark-morph of the season: an adult), Red-tailed Hawk (14) and American Kestrel (5), but Golden Eagles have not yet started moving in any numbers. A Prairie Falcon was seen to catch and eat a small songbird as it passed the site, and later an American Kestrel performed the same feat with a high-flying long-horned beetle: in neither case was their migratory momentum impeded in the slightest! Passerine movement was again strong and included second seasonal records for Swainson's Thrush and White-throated Sparrow, a single Black-billed Magpie was the 80th species seen at the site this fall and the 137 Red-breasted Nuthatches brought the monthly total for September to 2052. Other migrants included 4 Blue Jays, 7 Black-capped Chickadees, 24 Mountain Chickadees, 29 Golden-crowned Kinglets, 36 Ruby-crowned Kinglets, 8 Mountain Bluebirds, 9 Townsend's Solitaires, 82 American Robins, 4 American Pipits, 1 Orange-crowned Warbler, 31 Yellow-rumped Warblers, 1 Wilson's Warbler and 203 Pine Siskins. A brief glimpse of a Bobcat just north of the site at 0937 was the first sighting of the animal this fall. 12 hours (244.67) SSHA 72 (518), COHA 17 (104), NOGO 6 (38), UA 3 (18), BWHA 4 (9), RTHA 14 (58), GOEA 8 (115), AMKE 5 (15), PRFA 1 (4), UU 2 (5) TOTAL 132 (938)