bird cormorant on a tree branch without leaves against the blue sky

animal avian background beak beautiful bill bird black branch breeding britain british carbo coastal colorful cormorant fauna feather feathered feathers great green kerkini lake landscape marsh nature neoaves neornithes outdoors pelecaniformes perched phalacrocoracidae phalacrocorax shore silhouette sitting sulae swim tree water wetland white wild wildlife wing winged