portrait of mother coot bird feeding it chicks in the nest waterfowl

animal atra avian avifauna bird birdblack birding birdinwater birdswimming black blackfeathers chicks conservation coot day daylight ecology endothermic environment eurasian eurasiancoot european feathers feeding fulica fulicaatra green lake marsh natural nature ornithology outdoors outside park pond rallidae spring swim tachymetabolic vertebrate warmblooded water wetlands white whitebill wild wildlife