I found thistiny blue flower in a grass field:
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I like the Speedwell family, they are quite nice to learn all the different ones. This looks like Common Filed Speedwell, its a bit blurred (and I cant see the stamens) but I say this as it looks like the lowest petal is white a usually the case for Common field Speedwell Its always good to either take a picture or a description of the leafs and also stamens help in identification. Have a look on in a flower book at all the different Speedwells.
A good picture and descripton on this link.
Lat/Lng: 50.4, -3.7
OS grid ref: SX7960