Tawny Owl In Broad Daylight

[Chipchopper]

I saw the owl fly through my garden a couple of times throughout te day;
Is this behavior unusual.
What might be the reason ?

[237SJ]

Maybe someone approached it's nest. I remember a barn where the farmer had put up a box for barn owls to nest and they flew out (in daylight) every time I went in there.

[rowanwitch]

Large brood might mean it has to try hunting during the day, but disturbance is most likely

[Chipchopper]

It seems tawny's only have one brood of 2-3 eggs but if there is a lack of food available at night, then this might be the reason, its around in the day time.

Disturbance, might be a possibility, non native grey squirrels and ring necked parakeets are competing for similar nesting sites to tawny owls and woodpeckers.