They are really rare and spawn only on the island and lost island

A good strategy is to bring a good shotgun and lower its health, then sacrifice a para since it's big enough and easy to tame

It as been confirmed that the Rhynio can be tamed via a tamed dinosaur and pretty sure the dinosaur dies afterward

Mine rex want to eat absorbent substrate how i feed

Easy way to tame one. IMO

1. build atleast 4 behemoth gates and 2 doors

make the gap between each so an argy can fit through. lure a female of your choice inside and fly out from the gap.

2. Lower its health to 10% easy way is to use wolf. so you can know when its health is below 10% its hp indicator will turn red.

3. just throw in the dino you qant to use as a host. even a bronto fits inside the cage. then use the pheramone with the tame(pheramone from killing male rhynio)

after it inhects its baby it will try to flee. just head out with your dino from the opposite side of the rhynio so you can use it again.

enjoy

If you don’t have cryos for the Dino you want pregnated you can use a flyer to lead it over to a safer spot and do it easier there.

Im not a pro but i can give u some tips you can use a pistol with a scope to dmg the female rhyniognatha and make sure ur on a safe spot for a safer success rate

Best thing for this is probably a pheromone dart. Also, in my opinion, do not kill females unless they have impregnated your dino

The best suitable creature to feed the pheramons is the trike

And if your Dino gets impregnated, make sure it has high health because when your Dino is impregnated it will slowly lose health until it dies(maybe unless you have a snow owl)

For some reason u can tranq them and get their health to 10% while they are tranqed, AND even when unconscious it’ll still impregnated ur Dino of choice basically cheesing the tame. Pro tip use strong tranqs they are a hard knock out:)

Feed the host right before birth or the host will die the moment before the baby rhynio is birthed. If the food is 0 when time for birth both will die.

Argentavis can not eat the thing the males drops.

It says under 10% health but with a lot, and I mean A LOT of failures, we believe it's under 100 health. Yes, thata correct, under 100 health. We switched to use primitive guns and shot it ones every 4-5 seconds while it attacked the tame we planned to sacrifice

It’s like the reaper on how to get the egg

So I just posted a tip on why I’m sad about how the rhynio was chosen and i just thought about how I use the word vexed a few times and a lot of people I know didn’t know what it ment until I told them so if your vexed your sad or un happy about something I just wanted to point this out in case people don’t know what I ment :)

Creatures that CAN eat the pheromone

Rex

Trike

Bronto

Purlovia (apparently)

Megalosaurus

Kapro (apparently)

Gigantoraptor

Gallimimus (apparently)

Cerato

Chalico

I knocked it out so I could get it's hp low...

It's been so long... it's still not awakening...

*WARNING* There is a bug with this where it will not eat. I have fed it raw meat, berries, spoiled meat, every food item I have and it won't eat.

So far I've found out can't tane with a shadowmaine or gig. Now trying trike or rex. These things are hard to find also