Dragon Turtle Hatchlings
From Wiki
Dragon Turtle Hatchling:
first kill the dragon turtle. http://www.uoguide.com/Dragon_Turtle_Champion_Spawn If you are lucky, you will find a turtle egg in your backpack. Craft a incubator (requires carpenter skill) http://www.uoguide.com/An_Incubator lockdown incubator in house place egg in incubator egg must stay moist every 24 hours pour water on egg to keep moist will take 3 or 4 days for egg to fully mature after mature, crack egg and tame turtle
Pictures below to help you with your egg
http://uo.com/wiki/ultima-online-wiki/gameplay/chicken-lizards-and-battle-chicken-lizards/#eggs
http://uo.com/wiki/ultima-online-wiki/gameplay/chicken-lizards-and-battle-chicken-lizards/