Photograph 1: A Shoveler, I think. Next to some mallards for comparison.
Photograph 2: A Mallard but backwards. Is it just a Domestic Mallard?
Photograph 3: I think its a Herring Gull, cant be sure though.
Photograph 4: It is just a Juvenile Moorhen or some type of rail/crake?
Photograph 5: Just a female Teal? Im not sure seeming as there is yellow on the wing.