[obol] Costa’s - Anna's Discussion; Or: “Costa’s and me”

[DJLauten and KACastelein]

bill clemons wrote:
> 
> I cannot say what bird the single photo posted so far
> is of.
> I cannot say the Sunday photo is the Costa’s I saw on
> Friday.
> What I can say is that on my monitor, I see hints of
> violet-purple. 
> Evident on my monitor (and in my brief Sunday visit),
> is a faint whitish “eyebrow.” 
> The odds of there being both a Hybrid Costa’s-x-Anna’s
> (the discussed photo) and a pure Costa’s in the same
> yard on the same November weekend is probably
> extremely low. 

Well, maybe Bill, or maybe not.  If Lars is correct, which we can debate 
(remember, predictions of certain species overtaking N America have 
sometimes not come true - ie, Shiny Cowbird, Cattle Egret - and 
sometimes have some truth to them - ie, E Collared Dove), then it could 
be possible that a male Costa's was in Lake Oswego all summer, bred with 
a female Anna's since no female Costa's was around (and apparently 
everyone tells me there are plenty of hybirds), then an offspring hybrid 
could still be in the area with the male Costa's, no?  One could argue 
this is not a juvenile, but whose to say that it didn't fledge last May 
and now has gone thru a significant amount of molt?

Cheers
Dave Lauten