There are about 15,000 types of wild fungi in the UK and my identification skills extend to no more than a dozen or so. Fortunately I can, with 100% certainty, identify field mushrooms and we have for decades collected these and eaten them. On a recent walk on Garway Hill, Herefordshire, an upland of bracken and grass that is closely cropped by sheep and ponies, we came upon these examples. The only red (and white) fungus I know is fly agaric, and these are not they, as they say.
photo © T. Boughen Camera: Sony DSC-RX100