I stumbled on this photo of two goldfinches eating seed from the yellow pincushion flowers. The official name is scabiosa columbaria var.ochroleucra. They are perennials, but bloom all summer long and into early fall. These are great plants for sunny areas. Mine tolerate drought conditions and re-seed, but not invasively. They have a tap root so be patient when transplanting the seedlings. They will take awhile to establish themselves.