<i>Buteo lineatus</i>
Length: 17-24"
<p>
The Red-shouldered Hawk red shoulder is a distinctive field mark.
They are fairly common in the Bay Area
though I don't see them quite as frequently as the Red-tailed Hawk.
I have noticed that they I will find them more in the interior of a tree 
while Red-tailed Hawks will be perching on top.
</p>