Use a griffin and aggro all wyverns in the trench, then fly straight up until u reach the barrier of the map (make sure wyverns are still aggroed on you). Then fly straight down to the trench (they cannot catch up on you because griffins are fast when flying straight down) and have fun collecting all the wyvern eggs :)
On Ragnarok, use a Pteranodon leveled in health and stamina. Also bring an Oviraptor, which you can tame with enough dodo or dilo eggs. Carry the Oviraptor to a Wyvern den. When your Oviraptor steals the egg, then you take the egg and carry the Oviraptor back. Make a trap, then scout the valley once again and lure a female wyvern into a trap with your Ptera.
Just managed to get an ice wyvern egg on valguero using a Deinonychus, it worked pretty well, I got a lvl 83 ice wyvern egg, if you do it on a deino then stay low and if you see wyverns, try to back away and make sure they don't see you. Kill off any bugs that try to kill you and climb the walls to get into the crevices that have the eggs in, and DIP, run outta there as fast as possible when you get an egg, the best crevice to go for on a deino is the one that's closest, for me that was the one bear the fire wyvern cave enterance. Good luck guys!
If you desperatly missing milk (and if you have no life) you can just give to your growing wyvern a enduro stew every 15 minute, this while prevent her for losing health when her food while reach 0, and while keep up the matuation process
Step 1. Get a Oviraptor to steal the eggs for you. Believe me, doing it yourself, particularly on your own, is a death wish. Step 2. Hatch it. For further info in thise check our YouTube it’s not exactly difficult info to acquire. Step 3. Get Wyvern Milk. This is easily the hardest step but guess what? You can skip it. Just tame a Deadon/Snow Owl or something similar and heal it has it grows up. Raised one at lvl 21 solo this way, no transfers. Hope this helped :)
When walking your baby wyvern don't think to yourself I'll just take it for a little swim through this lake. Because as soon as it hits the water it starts to fly and it won't stop! When you whistle to stop it just starts to fly off into the sunset. Say good buy to your wyvern and all the milk in its inventory.