Leeds-Liverpool Canal, Shipley, West Yorkshire, Saturday approx 4.30pm - I only got a fleeting look as I was driving over the Dock Lane swingbridge, but here goes...
two ducks, most likely males considering their plumage, in amongst a group of male and female mallards which I don't have any problem identifying - they were definitely not mallards.
They seemed bigger than the mallards; brownish back, green neck & head, white chest. RSPB site suggests Shovelers, but I didn't see the beaks so can't confirm.
similar but their backs seemed more brown than this. The site also suggests they may be resident or borderline summer visitors
nul points for anyone that says "baby robin"