Today, have seen up to 18 Cassin's Finches (9 males & 9 females) at a time at the feeder. As noted in Sibley's, they tend to forage moreso on the ground for scattered seed, than up on the platform itself. Haven't seen this many in a number of years. Hope they're not done coming through!
Others: White-crowned Sparrows, House Finches, American Goldfinches, BC Chickadees, RB Nuthatches & RW Blackbirds visiting the black-oil sunflower seeds. I also put out the thistle seed feeder, in hopes of attracting Pine Siskins. The goldfinches found it, right off!