Here is a post by hujh2012
"Hi there Sara I have one of those neighbours from hell and they moan for the sake of moaning. One day everthing is okay then a few days later everything is not , you get the drift.
Well they are moaning about my ducks saying they are making noises all through the night but I am not that far away from them and dont hear them except on odd occaisions.
They have counted the amount that I have and have now threatened to take the matter further. We live in a typical country village but these neighbours are townies I think and keep saying that we are not in the country.
I was wondering if you or anyone else knows how many ducks one can keep on their property bearing in mind it is not a smallholding but my garden is quite substantial.
I know that I have to register if I keep more than 50 but I only have 20."
"Hi I only have 8 ducks and to be honest they can be very loud day and night at this time of the year especially if there are drakes present, I do worry what my neighbours think, I to live in a village
I dont think there is a law as such on numbers but the RSPCA Welfare Standards recommened 1 duck per 4sq metre out doors and 5 ducks per 1 square meter housed over night so you will have to do your own sums on that one,
if your neighbours make a complaint to the council regarding noise the council will contact you, your neighbour and yourself will have to keep a diary of noise and if they wish the council can install a sound monitor on your property to determin if infact the ducks are causing a noise nuisense
hope it doesnt come to that as you can be forced to give up some or all of your ducks."