Tundra Swan. The following recordings were made in mid-March at Whitesbogs in the New Jersey pine barrens.
This was the most commonly given call by the birds in the flock:
Another commonly heard call.
A group of birds making these calls.
These calls are quite similar to those of Snow Geese:
Snow Geese in flight (Feb, NJ).
Several agitated birds bugling, with quieter squeaky, two-noted calls.
Bugling calls by birds in flight.
A pair of birds head bobbing, calls include a moan-like call.
A hoarse call.
Mute Swan grunt (Mar, NJ).
A rising call (May, PA)
quiet hiss (Mar, NJ).
Mute Swan in flight (May, NJ).
time scale reduced