2 - ∞ I'm going to break down the definition of flock to make this easily understandable then give you answer quick and easy (I hope). Flock: a number of birds of one kind feeding, resting, or travelling together. read more
By birds co-existing with one another in a flock, less time and energy is spent searching for predators. This mutual protection of one another within the flock is one of the benefits to living within a group. read more
Flock: a number of birds of one kind feeding, resting, or travelling together. Number: A quantity or amount. So a flock is, Flock: An amount of birds of one kind feeding, resting, or travelling together. So to answer your question, 2. It never specifies an amount, so it can be anything from 2 - 5 000 000 000. read more