What is a group of Mallards called?

A group of mallards is commonly called a Flush. Other collective nouns you may see include Puddling and Sord.

A collective noun for mallards is a flock of mallards. These vibrant and highly adaptable waterfowl are widely found across various habitats in North America, Europe, and Asia. Mallards are known for their striking array of colors, with the males exhibiting a beautiful green head, yellow bill, and chestnut chest. Females, on the other hand, have a mottled brown appearance, providing effective camouflage for nesting and rearing their young. A flock of mallards showcases their gregarious nature and social behavior as they gather in groups, often congregating in ponds, lakes, or riverbanks. The collective movement and synchronized foraging of the flock create a mesmerizing sight as they navigate the water's surface and interact with each other. Mallards are migratory birds, and during the winter, these flocks often increase in size as they gather together in more favorable feeding and nesting grounds. The collective behavior of mallards serves numerous purposes, from safety in numbers to efficient foraging, allowing them to thrive in a cohesive group. Together, they communicate through a series of quacks and other vocalizations, while simultaneously displaying their elaborate courtship rituals during mating season. Witnessing a flock of mallards can be a moment of awe and wonder, capturing their resilience and adaptability as they overcome various environmental challenges. Whether they are peacefully swimming, feeding side by side, or gracefully launching into the air, these collective beings represent the enduring spirit of mallards, constantly reminding us of the intricate and fascinating nature of the avian world.