With 500% melee, a Wyvern is essentially a flying Giga that can also easily replace your Argents and Brontos. Wyverns are hands down the best meat farmers for massive carnivore raises, gather crazy amounts of thatch, and travel faster than a 200% speed argent even at the Wyvern's slowest speed.
Wyverns lose 1 good point per 10 seconds, and 360 points per hour. So 1 wyvern milk will sustain a wyvern for 3.33 hours due to it's 1200 food points. If it's a low level, it might not have 1200 points and have to be force fed milk to avoid starvation. But once you feed it milk and it goes up 1200, you can safely walk away for 3.33 hours and return back to knock out a wyvern and feed it after. If you want to imprint, that's a different story. (The same wyvern can be knocked out for 5 milk every 1 hour). Preserving bin + preserving salts for milk = little over 2 hour spoil time. Good luck getting a wyvern! P.S. make a wyvern trap. It's the best method for getting milk. :)
To steal an egg now I would suggest transferring a good ptera with 800+ stamina and enough weight to carry an egg. Build a good wyvern trap right beside an egg spawn and you will be fine. Once your first wyvern is raised, you can outrun all but alphas ^.^
'rip people getting eggs after flyer nerf'
I got me plenty since! Use a ptera and do a couple of barrel rolls through trees and tight spaces and you'll be fine getting away! Just make sure you have a ptera with over 1000 stamina, egg grabbing is a breeze :)
Remember... if on a poison wyvern... dont kill yourself with its special attack.. if you do... dont worry about your stuff... it will eat you and your inventory and wait for you to get back if on passive
If on Ragnarok, go to the wyvern cove on the bottom left side of the map. Use a Thyla to navigate the cave (yes a thyla). If you grab an egg or catch the wyverns attention, jump to the water below and swim to the entrance. Stay low underwater. You'll lose aggro in about 5min and can go back in the cave. Easy eggs, no risk, high reward. No more suiciding pteras or griffins. Can't believe this method hasnt been posted on YouTube. Yes it takes longer to navigate the cave, but you won't risk losing 20 pteras for one level 50 egg. My tribe has used this method to getcpuntless eggs without losing Any tames. You're welcome.