The Photos Of Roy Cunningham

Having checked all of the common birds of Great Britain, I’ve come to the conclusion that these are “probably” house sparrows (Passer domesticus) – although the colour of the cap makes me doubt it. But it’s the nearest match I can find. If you know different, please let me know by using the Comment box below. Thanks.
This pair was seen at the feeder station at the Far Ings Nature Reserve in North Lincolnshire.
Camera: Canon EOS 5D Mk II w/ Sigma 70-300mm DG OS @ 300mm; Exposure: 1/400th sec @ f11; ISO: 800