There's some surprises in the birb blind boxes. But, how rare are they? Common Cards (Non Secret-Rares): (Rounded to nearest decimal) 63.9% - Base 28.2% - Holo 6.1% - Cracked Ice 1.7% - Burst #’d out of 99 0.017% - Gold #’d out of 10 Head Birb: (Rounded to nearest decimal) 64.3% - Base 28.2% - Holo 6.2% - Cracked Ice 1.0% - Burst #’d out of 10 0.02% - Gold #’d out of 2 Bling Birb: (Rounded to nearest decimal) 64.2% - Base 27.9% - Holo 6.7% - Cracked Ice 1.0% - Burst #’d out of 5 0.02% - Gold 1 of 1