A tiny flash of striking blue and red, but unmistakable as it zips along then rests to watch for prey.
The first picture is a cropped version of the second one.
This bird was fishing the upper section of the Stourbridge canal where it begins to peter out in the Buckpool LNR – in fact it is pictured at the start of the cul de sac side arm. I only had a brief view – the bird was not happy at the arrival of a large dog being walked along the other bank.