Goose (5e Creature)
From D&D Wiki
Small beast, unaligned
Peck Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 4 (1d6 + 1) piercing damage.
Geese are aquatic birds and are one of the smartest birds on Earth, often remembering different people and places they have been to. Geese live harmoniously with other geese and wildlife but can become extremely territorial or aggressive when provoked. A goose is likely to have one mating partner throughout their entire life.