Red Knot : incoming I : RSPB Snettisham / The Wash (shorebirds / waders)

Red knot (Calidris canutus), flying in from their feeding grounds on The Wash estuary, to their high tide roosting area on one of the lagoons at RSPB Snettisham, UK.
I particularly like the way the small group of black-headed gulls (apart from one!) struggle to swiftly exit their roost, as it is suddenly inundated by several thousand Knot.
You might also spot the odd Dunlin (Calidris alpina) in amongst the flock, and a few Oystercatchers (Haematopus ostralegus) passing by, which are often also found here in good numbers.
The video is very poor quality I'm afraid, as it was shot pre-sunrise on a very overcast morning, with practically no light down in the lagoon area. So colour and detail are pretty minimal. However, I thought I'd publish the clip anyway, as I think it gives a sense of the numbers of these shorebirds which can often be found in the area, particularly in late Autumn and early Spring.
Location: RSPB Snettisham, Norfolk, UK.
Filmed (phonescoped) : Feb 2023.
Single clip, one-fifth normal speed.