Therizinosaurs, or tickle chicken, is very territorial and does lots of damage.

A good strategy is to stand on top of a very steep rock or a small cliff and start shooting. Make sure that it's steep enough so that the therizino won't climb over it.

Another strategy is to lure him into a 2x2x2 trap. Make sure that it's made out of stone, or metal if you can afford it.

When it's down, feed him berries or crops. Make sure to bring hundreds of narcotics, because the therizino's torpor drops quickly.

Once tamed, you probably don't have to worry about him dying, as it's power rivals theropods like the rex or the spinosaur.

I was just casually looking for a high level male Rex to breed with my high level female Rex when suddenly I saw one of these guys, a level 140 female theri so I decided to go back to base to make a trap and prepare next day i go back.. and it’s gone replaced by a level 90 male not far where I found the 140… am I the only one who this happens to?

This one is a hard tame to tame it just build a 4 floor building made of stone and get a ladder get on the building and get a bow or crossbow better to get crossbow then get 50 tranq arrows just incase you miss and keep shooting till it runs then chase it and keep shooting till it is knocked out then get alot of nacro berries about 300 or 400 then get alot of berries and wait it will take a while then congratulations you have the tickle chicken

This is from my experience in playing hardcore.

1. This fella can really navigate rough terrain. I was surprised that it even made it up a quite steep cliff. If u want to snipe it from atop, make sure ur standing spot's steepness is at least almost 90 degrees between the lower part of ur 'platform' and the ground. Any lesser will ensure this thing coming up for the kill. I survived but my level 51 Tapejara din't. He saved my life. 😭

2. Sometimes when u r tranquilizing it, all of a sudden it will appear like running away. But, don't be fooled. It does this to lure you down. Happened many times. If it really ran for more than 7 secs away from u, then it is really escaping due to the rising sleepiness. It has a high amount of torpor resist. So, don't expect an earlier catch. Usually takes me at least 10 arrows with a crossbow to attain a result.

3. I realized that Spinos are the best dinos to counter these tyrants due to their buff and knockbacks. If u manage to tame 1, should be no problem if u bump into these terror chicks. Their agro range is very short.

Hope this helps.

The tickle chicken, a fearsome terror of the beaches. This horrifying creature’s diet consists of berries and probably your nightmares. If you encounter this loathsome monster in the wild then you should run as fast as possible in the opposite direction. If it attempts to tickle you try to lose it in a dense forest. If you do not have access to any dense forests then try outrunning any friends you may have with you, as it stops to rip them apart you can easily get out of sight. If you do not have any friends or forests with you, try to convince it to jump off a cliff. This is possible do to the fact that the tickle chicken will always run in a straight line towards you, however this may not work in Ark 2 do to likely AI improvements.

Avoid them if you are not confident you can kill or subdue them. Despite being Herbivores they will not hesitate to use those large claws to slice you into ribbons before wandering off. These "Tickle Chickens" are certainly a threat to newcomers, and even more experienced survivors who find themselves unfortunate enough to have drawn the ire of a Therizinisaurus. I have no advice on how to fight one, only that you should avoid them.