How Migratory Birds Respond to Balmier Autumns?
Thursday, February 23, 2017 - 09:31
in Biology & Nature
To study the migration patterns of white-throated sparrows researchers kept track of how active the birds were by day and night. When the temperatures dropped , the birds all became restless at night, signifying they were in a migratory state. As temperatures raised none of the birds showed signs of migratory restlessness.