We have a big ponderosa pine on our property and sometimes the stellar jays go wild when there is a bird of prey up there.

We have seen barred owls, great horned owls, and cooper’s hawks.

https://imgur.com/a/ymDn7ff

I haven't seen this with owls but we've got some kind small predator bird like a peregrine falcon that the blue jays have it absolutely out for. The most interesting thing is once they start making the alerting calls, an inter-species mob will form with other birds of similar sized that aren't usually aggressive (like northern flickers) and they'll all harass the falcon until it flies off.

It's called mobbing!

In my area the yelling is always about hawks. The owls here are nocturnal so they don’t overlap.