Collective nouns

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Across
  1. 3. a group of rhinos
  2. 4. a group of crows
  3. 7. a group of owls
Down
  1. 1. a group of giraffes
  2. 2. a group of rats
  3. 3. a group of parrots
  4. 5. a group of lions
  5. 6. a group of turkeys