Why do Birds Flock?

Have you ever wondered why birds flock together?

They sit together on tree limbs.  They arrive at our feeders in a giant whirlwind.  Have you ever wondered why birds flock together?  There’s safety in numbers!  A flock is like a huge bird with many eyes.  A lone bird must constantly keep a watchful eye against enemies.  A group of birds can share patrol and have more time for eating and grooming.