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Female isn't red/brown underneath.
Females can have quite masculine plumage at times and can have a slight reddish tinge underneath but never as vivid as the males.
It's a young bird, born this year, with a very irregular, coarsely-streaked breast and brownish head. Probably a male, on size, but not always obvious at this age.
My Flickr photos...
Lat/Lng: 53.338430911727, -1.2762490715027
OS grid ref: SK482826