Talk to Elize in Marksburg on Elym Harbor to learn of a competition to earn a Bunnykins.

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Head to the Bridge of Unity to register and then return to the job board in Marksburg to accept the Speed Quest . The Malachite Beak in question appears on the Central Region of Rusalle Highroad and by this point shouldn’t pose much of a problem.

Once you have killed 5, return to the job board to receive the Prize Voucher and head back to the Bridge of Unity.

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Looks like you have been duped and this is actually a Bunniekins, not a Bunnykins. What a jerk.