two black-headed gull's om wooden pole

blackheaded gull chroicocephalus ridibundus laridae charadriiformes aves bird waterbird water aquatic seabird fauna nature reserve lake pool fresh pole wood wooden perched resting pair birds couple afternoom male female april spring springtime europe nobody two animals rear view full length back least concern adult watching outside outdoor beauty beautiful vogelplas starrevaart zuidholland leidschendam netherlands nederland black-headed gull's