User blog comment:BonesMcGee/Brainstorm: Potential savings in using the hurry hatch trick/@comment-5355974-20120927031657/@comment-5355974-20120928040234

Being that it happens relatively rarely (dino eggs not being registered/saved) it's simpler just to throw them out.

As for taking the dino den in and out of inventory, it gets easier with practice.

Here's a trick you can use. When taking the dino den out of inventory, don't try to place it in a specific spot on your village. It can be challenging to do that if your village is crowded or you normally place it in a "hole" that is exactly the right measurements.

Instead, fling/slingshot your dino den off the village into the no-man's land and let go. The dino den will instantly fly back to the first available 6x6 spot on your village. This can take a few seconds off the process of dino den juggling.