Barn owl
A very pale, slender owl, typically white on the underparts and golden-brown with grey markings on the upperparts. It has a white, heart-shaped facial disk with dark eyes. This, and its pale plumage, separate it from any other resident owl. Usually seen over grassland or farmland.
In flight, often gives the impression of a large white bird. Most often seen at dawn and dusk, though can be seen at night or even hunting during the day. Flies back and forth over fields.
The barn owl calls with eerie squeals and a shrieking 'shreeee'. Take a listen...