Hi, sorry if this is against the rules but I'm a sound recordist hoping to ID this bird call, any help would be hugely appreciated! It sounds a little like a Curlew, I'm pretty sure there is a curlew in there too amongst the other birds but it's the other stand out call that I can't identify.
Bird call, around 3am, September 2018 by the river Deben estuary, Suffolk, UK
https://soundcloud.com/mattwaitesfx/bird-id
Many thanks
Bird call, around 3am, September 2018 by the river Deben estuary, Suffolk, UK
https://soundcloud.com/mattwaitesfx/bird-id
Many thanks