Zugunruhe: anxious behavior in birds during the normal migration period.
Wanderlust: OK, knew of it, know know it. a characteristically German predilection for wandering that may be traced back to German Romanticism and the German system of apprenticeship (the journeyman), as well as the adolescent custom of the ‘Wanderbird’ seeking unity with Nature.
Zuletzt: last/the last time. found this word by accident. strong word.