American Goldfinch | Carduelis tristis The sunflowers are done in our back lane but the seeds are now attracting birds – primarily American goldfinch (Carduelis tristis) but also house finch (Carpodacus mexicanus), chestnut-backed chickadee (Poecile rufescens) and house sparrow (Passer domesticus). That’s one of the many benefits of growing sunflowers. Not only do you (and insects) get to enjoy the …