In response to Sachiko & Co.'s sighting and Michael Hobbs' comment: in a
decade of at least weekly visits to Marymoor Park, I've seen female
Northern Harriers regularly but not a single male. I believe my notes
would show a couple of summer sightings, but no more than that: as Michael
suggests, it probably doesn't breed there. However, I'm pretty sure
Sharpshins do, and Redtails, and of course there's the Bald Eagles' nest.
I have seen Kestrels there in the breeding season twice, in one case
actually copulating, but have no idea how close to the park they might
have been nesting (and it was about six years ago). I've also seen up to
three Osprey at a time overfly the park. Does anybody have a fix on the
closest Osprey nest to Marymoor Park?

James West