| 释义 |
‖ Zugunruhe Ornith.|ˈtsuːkˌʊnruːə|
[Ger.]
Migratory restlessness; the migratory drive in birds.
1950Condor May 108 Zugunruhe..is the restlessness displayed by caged migratory birds during the migratory period. 1971Sci. Amer. Apr. 76 The behavior of the four groups was studied in terms of signs of Zugunruhe, or migratory urge, as shown by night activity and by the molt of feathers. 1978Nature 13 July 154/1 The birds were housed under natural photoperiod in an outdoor aviary, and tested only after they showed migratory restlessness (Zugunruhe) in activity cages and exhibited subcutaneous fat deposits. |