From Guild Wars 2 Wiki
Mini-moa Egg is a consumable, that when consumed, summons a mini Moa that does a short dance and then disappears.“
Double-click to consume.
Double-click to use. Hatch out a Mini-moa to dance for you.
Hint: Watch the moa dance! Purchased from Moa Trainer Kappa in Beetletun, Queensdale after escorting her and her pygmy moas.
— In-game description
|Moa Trainer Kappa||Queen's Forest||Queensdale||2 16|