These eggs will not be "dropped" by any Chizzard that was killed or dismissed. Chizzards look like a hybrid of a chicken-like animal and a reptile-like one (lizard). To receive Chizzard Eggs from these Pets you will have to "pull" them with your arctek gauntlet (no Power Cell is needed) like you would pull any block for mining or harvesting a short while after you fed your Pets. Chizzard Eggs can be used to cook a number of Food at the Cooking Station: Corrupted Chizzards do not "lay" any eggs as yet.