Thanks, for the question about the SSHA plumages. At the time I saw the two,
I was concentrating on trying to determine whether they were Cooper's or
Sharp-shinn's. There size led me to believe SSHA's and when I got a good look
at the squared-off tail it confirmed it. But in recollection, I do remember
that one did have a light colored brown-streaked breast (juvenile) and one did
have a very dark gray back of an adult. I should have paid more attention to
these details at the time and reported that info. So, I believe you were
right, one adult and one juvenile, but I don't recall who was chasing who.

Hugh Jennings
Bellevue, WA
hughbirder at aol.com