From Oregon Flora, Gardening with Natives:
The nodding blossoms of red columbine are a familiar sight in meadows, open forests and rocky slopes across the western US. The flowers, consisting of dramatically spurred red to orange sepals surrounding yellow petals, bloom late spring to late summer. Its nectar attracts butterflies and hummingbirds and the seeds are favored by birds, rendering columbine the perfect addition to a wildlife garden. It prefers partial shade and well-drained soils but can tolerate full sun with supplemental moisture.