You need an Argentavis 200% speed or more to outrun wyverns. Remember whips can pick things up, If you use them correctly it will be faster to get the egg and run! Enjoy! You also might want to get better than primitive crossbow or longneck to knock one out.
To have your own wyvern you need to steal its egg, so there is a few things you need to have to go for a wyvern egg:
1. You need a flying dino that is fast and has decent stamina.
2. Locate the wyverns’ cave in any map you play (Ragnarok, Valguero, Scorched Earth, etc.).
3. Go near the cave and stop to regenerate stamina.
4. Try to see hoy many adult wyverns are flying around the cave. If there are too many you don’t have many chances to successfully steal an egg
5. When you are ready, fly into the cave and take the egg (I recommend to take the first one you see, because if you stay too long inside the cave, wyverns might kill you).
6. FLY AS FAST AS YOU CAN TO GET OUT OF THE CAVE.
7. If you can get out alive, you have made the hardest part, but you have still work to do.
8. When you arrive your base, put down and light around 10 or 15 torches in a circle, and place the egg in the middle.
9. Wait for it to hatch.
10. When the egg hatches, you will have to take care of the wyvern until it grows. You have to do the things that the wyvern asks you to do. The hardest one is to give it wyvern milk. To acquire this you need to knock out an adult wyvern or kill an Alfa. BUT THERE IS A MUCH EASIER WAY. If you have cryopods, try taking your wyvern in the cryopod and then let it out. Sometimes it changes the thing that the baby is asking for.
11. Keep doing the things that your wyvern wants until it grows.
I tamed a 150 perfect argy, beefed him up to 20k health and 800% damage, straight up yoinked a level 165 wyvern egg(which i didn’t know existed, thought it went it 150), annihilated all the angry losers, hatched it, forgot I needed milk and it died, don’t be me
I think i made big mistake in Fjordur... i saw a fire wyvern strayed from the nest and got picked by nearby Giga. So, i jumped on my fast Griffin, dove down, baited all remanded wyverns to Giga spot, worked like a charm, picked up all 5 eggs included lvl 185 without a sweat.
And then, i returned to the site 2 days later just to found it totally empty, both Giga and Wyverns disappeared... no more milk to raise the wyvern...
I returned 3 more times, built a wyvern trap for milking, the wyverns just gone and never come back... i guess both of them and Giga got glitch out of the map, likely under some magma river...
I got a level 150 lightning egg and I was so excited to hatch the egg...that when I went to put the egg down I accidentally ate it instead. :( ps4 users: R2 ISN'T GONNA DROP THE EGG YOU'RE GONNA EAT IT LIKE ANY OTHER EGG. REMEMBER THIS. LOGIC BEFORE EXCITMENT.
Most people use the term “steal” when it comes to their eggs, I prefer the word “take”.
We are humans, we are smarter. We don’t have to cower in shadow of their great, majestic, horrible wings. Grab yourself a creature with platform, build 8-10 automatic turrets on it, bring 3000+ bullets, bring your trusty flying mount of choice, and watch them fall to the glorious, bottomless malice of mankind in seconds and when all fell to ash and cinders, fly up to their empty nests and have your picks.