Hello Dennis,
Yes, with Chestnut-backed Chickadees, we have experienced this every year at our home.
We have Black-backed chickadees here all year.
Dan Reiff
MI
Sent from my iPhone


> On Oct 28, 2024, at 5:36 PM, Dennis Paulson via Tweeters <tweeters at u.washington.edu> wrote:

>

> Hello tweets,

>

> Two of us, living several miles apart in Seattle, have noticed a substantial decline in Chestnut-backed Chickadees in our yards from their abundance this summer. Black-capped are still in the same numbers. Has anyone else seen this?

>

> Dennis Paulson

> Seattle

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