Garden Wildlife UK

I am not sure if it is a type of duck or different plumage.

Pale Duck wm by John, on Flickr

It is a cross breed. You can see some Mallard but a domestic duck has entered the gene pool at some stage.

Thank you. I have never seen one like this before.

The Orpington or Buff Orpington Duck is a breed of domestic duck. It is a dual-purpose breed used for meat and egg production. It is capable of laying up to 220 eggs a year. Originally created by William Cook of Orpington, Kent, UK

johnd83 wrote:The Orpington or Buff Orpington Duck is a breed of domestic duck. It is a dual-purpose breed used for meat and egg production. It is capable of laying up to 220 eggs a year. Originally created by William Cook of Orpington, Kent, UK

Thank you john83. Many of the domestic breeds had Mallards in the mix.