Bellissima immagine, eccellente nitidezza e grande ricchezza di dettagli, splendidi colori. Grazie e complimenti.
Very Nice Shot!
Yes, it is a cooperi. The confusion species is the Sharpie (Accipiter striatus). The species is only slightly sexually dimorphic. The female is a duller browner-grey dorsally, rather than blue-grey. This is the adult male. Another subtle distinguisher is the capped effect of the blue-greyish crown and nape. The female has the blue-grey extending back onto the neck without this change of color on the nape. So, the male for me.
The ID is correct.
Still need that book! This is an adult female (pale iris - males have them dark brown) Psaltriparus minimus - Bushtit.
Yeah, you need that book that I recommended. There are three so-called Goldfinches in California. The American Goldfinch (Carduelis tristis); Lawrence's Goldfinch (Carduelis lawrencei); and this one, Lesser Goldfinch (Carduelis psaltria). This is an adult male bird. The American Goldfinch has the black crown involving only the forehead to the highest part of the crown (finishes just about at the level of the pre-nape, i.e. the first part of the nape), and the blackness does not surround the eye as you can see here. The American Goldfinch also does not, in the adult male, have all of this grey on the ear coverts and side of the neck, and also do you see the black terminal zones on the undertail?, well, in the American Goldfinch it is much thinner.
Very well clicked photograph with great details & surrounding of the house finch. Cheers.
Regards-Dr Subhash Ranjan