Small shed or Wendy house (Chelmsford)

Hi I'm looking for a small shed or Wendy house as I'm looking to get some ducks, I live in a rural area with lots of foxes, they will be free range ducks as I have a very large garden but as soon as the night draws in I'll need to shut them away, would really appreciate any help, also I'm still looking for an older boys or mens bike so my son can cycle to and from school, thanks for reading 🙂