Not hard to knock out, but you need prime meat or mutton to tame these cute guys. You have to be prepared before you tame a compy, and also slightly lucky. First, use a bird to pick up a compy. I would use a pteradon because they can pick up compys and quickly fly back to base. Then, drop it in a gaming pen or anyone inclosed inside your base. After that you need to look for a source of prime meat near your base, which is hard if your a low level or live somewhere like a beach. I useally do diplodocuses which take a while to kill but they don’t do damage. Finally, fly back to your base, be quick because the prime meat spoils after around 2 minutes. You can put it in your bird or a shoulder mount (make sure it’s a herbivore so it won’t eat the meat!) Go back to base and land in the pen where your wild compy is, take out the meat, and use a crossbow with a tranq arrow to knock out the compy, which useally only takes one arrow. Put your prime meat in him, and you have a new mini raptor!
Tame them for comfort, luxury, and companionship. Other than that, don’t even bother taming them. Their stats and utility are horrible. They are basically dodos, except more aggressive and cute to some people.
If you want to tame them, knock out with a bat. Feed it a few primes, and put in some nacros. Be quick, this creature wakes up fast. Try to isolate it from the pack.