In English, the common names for some bird species have changed a lot over the decades. In Frachtenberg’s Siuslaw word list (published in “Lower Umpqua Texts” in 1914) he has a word for ‘pigeon hawk’ – qsii’i.
A quick google shows that the merlin (Falco columbarius), a small raptor, used to be called pigeon-hawk. They are fairly common in North America.
So this is the Siuslaw word of the day! qsii’i, the merlin.