Peromyscus

Scarlet male thirded

The 2nd edition eastern Sibley guide notes that female Scarlet Tanagers have a gray underside to the tail and female Summers don't.

I agree with Golden Eagle.

I also think so.

ikr! The 2017 7th edition of the National Geographic guide has a sitting adult and a single flying juvenile of Nazca Booby in the main section, finally. Hopefully the 8th edition will have more illustrations!

I agree with Connor.

Seconded.

Nazca Booby has not been a California review bird since 2019 ended (147 records in the database through the end of 2019), while Masked Booby still is a review species (107 records in the database through last month). That is not the result I would have expected. The bird(s) in the photograph are statistically more likely to be Nazca than Masked, however I am not going to attempt to identify them to species. https://www.californiabirds.org/database_query.asp

It's a juvenile American Robin. Welcome to Whatbird, DerBengel, unfortunately under this sad circumstance.

Seconded.

Seconding Caspian Tern. The bill is too big for Common & Forsters, among other features. Royal shouldn't be in Missouri and would not have a solid black cap.

Could it be a Barred Owl?

Mourning Dove indeed. Tail and color.

Yup, Loggerhead Shrike.

Fourthed

This is indeed the case.

This. Plus, the pointed bill rules out vireos.

It does! House Finch for the second photo. ?

I like your new avi photo.

Great Blue it is!

My gut reaction in Green Heron. There are currently just 106 accepted records of Tricolored Heron in California. The only San Francisco record was of a 2019 bird that was also in Marin County. https://www.californiabirds.org/queryDatabase.asp?partial=on&species=Tricolored+Heron

Fourthing Snowy.

Bobolinks. I don't think you can differentiate the sexes at this time of year. Congratulations on your lifer!

Either Plumbeous or Cassin's Vireo; probably Plumbeous?

Common Nighthawks for sure. And, welcome to Whatbird!