Build 5 stone gate frames snap them together at a 45 degree angle remove the middle one have some on a bird get aggro when it's in the trap and unload with cannon as long as bird is in the air it will just stand there for you to Ko. And it will not throw rocks at bird as long it is flying. Just don't hit bird with cannon.
It's a bit silly that kibble tames it a lot better than rocks or sulfur because even in the dossier it says that it lives off of absorbing nearby rocks and minerals. So mabey they should make it so you have to feed them a rare mineral like obsidian what if they made it so you could tame one fast and with high effectiveness by giving one a few hundred or few thousand obsidian . or what if there kibble was made out of a combination of ores and minerals .