Wyverns cannot be tamed when wild and must be raise at a 4 day period while in that time you need milk every few hours and the milk spoils within 1 hour and 30 minutes milk is only acquired by killing or knocking out a wild female wyvern or an alpha of any gender. Please note that getting eggs involves angering a large amount of wyverns... minimum argy speed is 185.2 although it's been proven that a 182.4 can out run them.

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