This week brought strong passerine and finch activity across the West, with multiple irruptive species showing notable numbers in California and Arizona. Seabirds and raptors continued their seasonal movements with widespread reports across coastal and mountain regions.
Evening Grosbeaks reached 46 birds at Los Padres NF Upper Seymour Creek Road in Ventura County, California on September 27. Reports span nine Western states with 305 total observations this week.
Los Padres NF--Upper Seymour Creek Rd. (VEN Co.) · September 27, 2026 · 15 birds
Clark's Nutcrackers were reported across six states with 357 observations, including 120 birds at Sabino Vista Hills neighborhood in Arizona on September 27. This represents strong activity for the irruptive species.
Sabino Vista Hills neighborhood · September 27, 2026 · 2 birds
Sabine's Gulls appeared at John Day Dam in Oregon on September 27, with up to 11 birds documented. The species shows 253 reports across 12 Western states this week.
A Broad-winged Hawk was reported at The Black's Backyard in Washington on September 27. Ten states documented 197 observations, with maximum counts reaching 17 birds.
The Black's Backyard · September 27, 2026 · 1 bird
A Parasitic Jaeger was found at Chatfield State Park North Boat Ramp area in Colorado on September 27. Seven states reported 146 observations of this pelagic species inland.
Chatfield SP--N Boat Ramp area · September 27, 2026 · 1 bird