bird observation post hide in water bird protection area flachsee vogelbeobachtungsstand im wasservogelschutzgebiet flachsee

activity architecture area background beach beautiful biodiversity bird birding birds birdwatching coast ecology ecosystem environment feathers flachsee flock fly green group hide hobbies hobby landscape look marine migrate national natural nature observance observation observe ocean ornithologist ornithology outdoor outdoors panorama park pattern peaceful post protection reserve schweiz sea seascape shore summer switzerland tourism travel unterlunkhofen vogelbeobachtungsstand wasservogelschutzgebiet watching water wild wildlife