little egret (egretta garzetta) in flight, reedbed in danube delta, romania,

acquatici ardeidae ardeidi avifauna bianco biosfera biosphere bird birds ciconiformes ciconiformi danube delta danubio east egretta garzetta est flight heritage horizontal little marsh mauro natura nature ornithology ornitologia palude patrimonio reserve riserva romania rushes site sito toccaceli uccelli umanita umide unesco volo water wetland wetlands white wildlife world zone