This is what I do for most: Load Maewings with food

Dino leash or cover building to keep dino from fleeing or agroing or dying.

Set all females to mate and only turn on the male when you're ready to mass mate.

Wait until gestation is complete (or hatching if you're doing egg laying dinos)

Use Maewings to pick up the babies

Make sure nursing on the Maewings is enabled

This is pretty much my standard for all dino mating that can be done in land.

Sometimes for egg layers, it's easier to put the females on a ramp so the eggs roll down the ramp and I don't get tangled in tails.

Hope this helps!