Some people make getting wyvren eggs too complicated. Here's my method, it works well enough for me:)

I take a few pteranodons, make sure I have the level flyer speed thing on, buffer that speed to like 205% at least and stamina at around 700. It's good to have health pretty high too.

Once you have your speedy ptera get yourself a spyglass (you don't really need one, it just helps) and go search for a nest. Dont choose one that has a ton of wyverens with it of course.

Fly your ptera down, hop off, grab egg, hop on ,fly as far away as possible making sure to weave through the trees if the wyveren is on your tail.

Hope this helps

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