Both the primary coevrts and the tertial area being marked dark. By contrast I can't find a BLKI with either. February is the month for RLKI in CA.
Thought it worth mentioning in case others want to go look for it.
At 10:58 AM 2/2/2019, Ken Schneider wrote: >Hi all, > >I had brief looks and managed a single photo of an immature >Black-legged Kittiwake seen just offshore from the Cliff House at >about 0815 this morning. A bit more detail at my eBird checklist here: ><https://ebird.org/view/checklist/S52301096>https://ebird.org/view/checklist/S52301096 > >I think the photo supports my ID, but I'm a little puzzled by the >apparent dark markings on the underside of the left wing (perhaps >the primary coverts?), which I don't see as expected in the field >guides I checked... comments welcome. > >Good birding! >Ken Schneider >Noe Valley >
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