Hello Tweeters!

I found a big pile of feathers on my property just east of Snohomish near
Three Lakes Road.

https://www.facebook.com/photo.php?fbid=10206359021920178&set=a.4709149572473.191669.1406355649&type=1&theater

https://www.facebook.com/photo.php?fbid=10206359021960179&set=a.4709149572473.191669.1406355649&type=1&theater

What bird did they come from?

Thank you
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