CASJs are now in and around Ellensburg. A few years ago, it was rare to see
one north of Yakima.

Steve Loitz
Ellensburg WA

On Mon, Oct 27, 2025 at 11:45 AM Chuq Von Rospach via Tweeters <
tweeters at u.washington.edu> wrote:


> On Oct 27, 2025 at 11:36:37, Stephen Elston via Tweeters <

> tweeters at u.washington.edu> wrote:

>

>> I am regularly seeing California Scrub Jay in the Greenwood neighborhood

>> of Seattle. The Stelars Jays still outnumber them significantly.

>>

>

>

> For better and worse, Scrub Jays are quite good at expanding territory.

> Back when I was living in California there was an area I was monitoring

> regularly over a number of years, and over about a decade, we saw it go

> from being primarily a Stellar's Jay area to Scrub Jay territory with only

> a couple of isolated Stellar's families in the deeper wooded areas. I

> expect by now the Stellar's have been completely pushed out. Scrub Jays

> keep more of a family unit going than Stellar's, which I think gives them

> an advantage when competing for territory (much like Northern Mockingbirds

> do). The Scrub Jays adapt much more easily to suburban and urban

> environments.

>

> Chuq

>

>

> ---------------------------------------

>

> Chuq Von Rospach (http://www.chuq.me)

> Silverdale, Washington

> Birder, Nature and Wildlife Photographer

>

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>

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--
Steve Loitz
Ellensburg, WA
steveloitz at gmail.com