flockless

/ˈflɑkləs/
adjective
  1. Without a flock; having no group of birds, sheep, or other animals that travel or live together.
    • A flockless bird often struggles to find safety from predators.
    • The lone shepherd walked across the hills, his dog flockless for the first time in years.
    • The farmer sold all his sheep and was left with a flockless pasture.