aerial view on group of great cormorants roosting on trees without leaves against red sunset in late autumn landscape. winter

animal animals avian background beak beautiful biodiversity bird birds birdwatching black blue branch carbo color cormorant fauna feather floodplain great green island isolated lake large marsh natural nature ornithology outdoor outdoors park phalacrocorax plumage portrait red sunset river shallow tree water waterfowl wetland white wild wildlife wing winter landscape