View Larger Image Ruddy Duck – Mallard size comparisonMia McPherson Image Description Title: Ruddy Duck – Mallard size comparison Location: Salt Lake County, Utah Date: 12/12/2016 Related Posts Image Details Categories: Ruddy Duck Images Tags: adultAnas platyrhynchoscomparisondiving ducksduckducksfemalehenMallardOxyura jamaicensisRuddy DuckSalt Lake CountysizeUtahwaterwaterfowlwinter