Dragon Den Hatching

A "Common" hatch always results in a Common (1*) dragon.

An "Uncommon" hatch seems to have approximately a 2/3 chance of an Uncommon (2*) dragon, and a 1/3 chance of a Common (1*) dragon.

An "Epic Dragon Food" seems to have approximately a 25% chance of an Epic (4*) dragon food, a 25% chance of a Rare (3*) dragon food, and a 50% chance of an Uncommon (2*) dragon food.