At night in a barn
most owls don't but barn owls come out day and night.
Every owl is different, but barn owls are nocturnal, which means they wake up at night and go to sleep as dawn arrives. There is no set exact time, but that is the general time.
Generally, a Barn owl will sleep during the day, hunting from dawn until dusk, unless the Barn owl has had a hard time hunting or is looking after its young, when a barn owl will hunt during the day.
There will be a slight decline in the Barn Owl population. This is because voles have the highest occurence and when that occurence disappears, the Barn Owls will have harder time finding food and won't be as easy.
not all the time, females are usually larger with darker markings
All owls are different in many ways for example there is a snowy owl and a barn owl. A snowy owl is very larger and white while a barn owl is smaller and has a brownish color. All owls change from time to time in color and depends on there breed and their main colors. The British Barn Owl is a pale cream color. Others have distinct dark markings.
Barn owl eggs typically hatch after about 31-32 days of incubation. The female owl usually starts incubating the eggs once the last egg is laid, resulting in all the eggs hatching around the same time.
Owls do not build nests. Some are cavity nesters, like the Common Barn Owl and the screech owls. Barn owls have been known to nest in: old buildings, caves, in palm trees, anywhere they can find a little hidden area. Owls that are not cavity nesters will use the nests of other large birds: crows, ravens, hawks. Some nest on the ground (Snowy Owl, Short-eared Owl), others will nest on ledges or in old buildings. As far as nest building goes, barn owls come closest in that the female will shred and arrange the pellets (regugitated undisgested bones and fur) to make a nice warm "carpet" for the eggs and chicks.
Owls don't have babies they lay eggs and typically the clutch tends to be a relatively small number, for a bird, of perhaps five but usually less.
All owls are different in many ways for example there is a snowy owl and a barn owl. A snowy owl is very larger and white while a barn owl is smaller and has a brownish color. All owls change from time to time in color and depends on there breed and their main colors. The British Barn Owl is a pale cream color. Others have distinct dark markings.
Possible - but unlikely. They only rear one clutch of eggs per year - and that takes almost all of their time. Rearing another clutch in a second nest at the same time would be near impossible.