Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 38832pr0044 Animal Body Part, Bird Head Upper Jaw with Dark Tan Beak and Purple Feathers Print (Occamy) this part is a pair of it
• 38832pr0045 Animal Body Part, Bird Head Upper Jaw with Metallic Gold Beak and White and Metallic Gold Feathers Print (Thunderbird) this part is a pair of it
• 38832pr0053 Animal Body Part, Bird / Dragon Head, Upper Jaw with Lime Eyes and Scales / Horns Print this part is a pair of it
• 72127pr0001 Creature Body Part, Dragon Head with Lavender Mane (Sisu) this part is a pair of it