The (variable) metallic twick of the European Starling (Nov, NJ).
The flight call is a growling trill, birds taking flight from a roost, with twick calls (Jan, NJ).
Starlings are often heard making this call from the tops of trees during the colder months (Nov, PA).
Another common call is a harsh rattle (Feb, PA).
Several birds high in a tree using these calls and whistling sounds in a song-like sequence (Jan, PA).
Same birds, with mimicry of Fish Crow at 9s and American Kestrel at 10s.
Alarm call at nest (May, PA)