I bet if you look closely at the feather it says "Water Resistant".Red-winged BlackbirdAgelaius phoeniceusBombay Hook National Wildlife RefugeKent, County, Delaware, USAOlympus OM-D EM-1 Mark IIOlympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS LensOlympus M.Zuiko Digital 1.4x Teleconverter MC-209 July 2022#1stPixBHNWRPhil's 1stPix Instagram Phil's 1stpix InstagramPhil's 1stPix on iNaturalist-Observation Map iNaturalist: ObservationsPhil's 1stPix on iNaturalist- Species Grid iNaturalist: Species