It is very easy to trap them
Just use a creature to reach to them which cannot be fear roared like wyvren or rex .you can use a simple trap which is used for argentevis taming.
A simple 4 gate trap is sufficient.
Use a creature that cannot be fear roared.
It's over Anakin, I have the high ground!
You underestimate my power.
Don't try it...
It really is that simple though, they can't reach you or your flier on a big enough rock, so if you don't want to make a trap you can just shoot down from a rock or cliff once the carnos are dealt with. Be ready for a goose chase once it starts running.