In the background you can see a young bald eagle, the ravens are only a bit smaller than it.
Campbell River to Quadra Island Ferry, BC, Canada
was able to see and ID up close, but couldn't get a great picture
An accipiter flew low over the bushes towards me as I was watching some Mountain Bluebirds. The hawk landed some metres away and the photos capture a squarish tail with a narrow light band at the end. No black cap as in a Cooper's Hawk and head is rounded. Size was hard to judge.