Leucistic Gadwall observed several times recently
No interactions present.
Usually due to moult the feathers will darken in time
Wild Flower Society member
Feathers are dead - they cannot change colour after they have emerged - the same as hair.
Loss of melanin pigments (which is what has happened), in birds, is common due to dietary deficiencies and/or stress.
Lat/Lng: 51.9, -1.1
OS grid ref: SP6825