Why do barn owls sleep in the day and not the night, why are they different to other birds?

Question: Why do barn owls sleep in the day and not the night, why are they different to other birds?
- Keywords:
  barn,
  birds,
  day,
  night,
  owls,
  sleep
Asked by charlie13 to David, Luna, Probash on 25 Mar 2011 in Categories: General.
- David Pyle answered on 25 Mar 2011:
  
  Evolutionary adaptation – why battle for food with all the other birds. So they eat animals which are awake at night, and have little competition.

Question: Why do barn owls sleep in the day and not the night, why are they different to other birds?