Bird Creek is a stream in northeast Oklahoma. The main creek is formed from the waters of North Bird Creek, Middle Bird Creek, and South Bird Creek, all of which rise in Osage County. The South and Middle branches of the creek converge at Bluestem Lake. Outflow from the lake is called Middle Bird Creek. North Bird Creek joins Middle Bird Creek northwest of Pawhuska, and from that point on is simply Bird Creek. From Pawhuska, the creek flows southeastward and eastward through the north side of the Tulsa metropolitan area, before reaching its mouth at the Verdigris River near Catoosa. Major tributaries include Birch Creek, Hominy Creek and Mingo Creek. There are numerous minor tributaries, both named and unnamed, that have contributed to historical flooding problems in the Tulsa area.