Hi Shaun, nice video! A few of the waders you saw were Greenshank and Green Sandpiper and not Lesser Yellowlegs and Common Sandpiper. The former have Yellowlegs and not green in colour and your Sandpiper feeding on its own was a Green. Common Sandpiper has a shorter bill and a brown mantle not dark green. If you ever fancy a wander to look at waders I live on the south bank of the Humber and my local patch is at East Halton. I've got a channel on here, so drop me a message if you fancy a wander.