There are two whistling ducks (a head at bottom middle and one behind the right-hand mandarin drake) which I think might be lesser whistling ducks although the prominent neck-stripe suggest wandering whistling duck.
Not sure about the bird behind the whistling duck at bottom - perhaps a mallard.
There are two whistling ducks (a head at bottom middle and one behind the right-hand mandarin drake) which I think might be lesser whistling ducks although the prominent neck-stripe suggest wandering whistling duck.