American goldfinch, European goldfinch, lesser goldfinch, evening grosbeak, pine siskin, Lawrence's goldfinch.

Lesser goldfinches are herbivores. That means they are primary consumers.

Probably a male American Goldfinch in breeding plumage. But I think this description could fit the males of the Evening Grosbeak, Lesser Goldfinch, Scott's Oriole, Townsend's Warbler, or even some flycatchers, depending on lighting. American Goldfinch are just the most common and widespread.

An Eastern Goldfinch

It is the willow goldfinch