Hatching: you need a very hot area. Use standing torches in a circle (10 to 15). Or build a room with a lot of air conditioners.
Imprinting and baby survival: Make sure you have wyvern milk. They only consume that for food when babies. You have to manually feed it to them until they are juvenile. It is also the only food they will ask for during care. Also set the follow behavior to lowest and disable wandering in case they wanna walk.
Wyvern milk can be obtained from knocking out a female wyvern and looting her. You get 5 milk. Doesn't respawn on same female.
Alpha Wyverns can be killed and looted for 50 milk.
Milk can be stored in preserve bins but not fridges.
Wyverns have 3 attacks. 3rd attack changes from flight to ground. Primary=bite, secondary=breath, tertiary(flight)=pick up creature, tertiary(land)=wing flap that pushes back enemies and knocks down trees(collects thatch more than wood)
No saddle needed. Friends can stand on back. Dismount doesn't throw you.
To know how much time need to the next feeding just do the next. Look the Food number# then that number multiply x 10, then divide /3600 and the result will be the number of hours until the next time need to be fed. F.E the food number is 1850.5 1859.5x10=18595 /3600 = 5.1 hours
I just use my climbing axe to go in the back entrance bring sleeping bags and lots of parachutes, plus don't touch the lave u will loose everything I always get my eggs on foot lot less to worry about loosing good takes keep them for the milk, them boom you got yourself some titty wyvern milk and eggs :) hope this helps
When egg hunting set up a pill box (6 steel walls, 1 steel ceiling, 3 auto turrets, 1 steel door frame and one reinforced door) set turrets to target wild creatures throw in 1k bullets and lead the wyverns into the danger zone
*Finding out you can tame dragons*
"YEEEEESSSSSSS DRAGONS YEEEEEAAAAASSSSSSS"
Wiki: "You must go into its nest with a fast bird, steal an egg, run away from 50+ wyverns trying to kill you, go back, get a female wyvern, knock it out, get its milk to feed your baby wyvern, raise your baby wyvern for many real life days, never sleep, starve, make sure you got lots of milk, get arthritis, play non-stop, never see society again, boom you have yourself a wyvern."