Mallard

Gathering of males with several females: Northumberland 7 Feb1996 4:30pm (dusk).
1 Calls (mp3 208k)
2 Calls with whistle (mp3 200k)
3 Calls with whistle (mp3 204k)
4 Calls with whistle (mp3 120k)
5 Excited rhythmic calling (mp3 352k)

Goldeneye

Male display call. Northumberland 7 Feb1996 4:15pm (mp3 68k)

Gadwall

Pair in flight. Northumberland 31 May 1999 8:30am (mp3 208k)

Teal

Group of males display calls. Northumberland 28 February 1996 8:00am (mp3 684k)

Ruddy Duck

Male display calls (with some Tufted Duck calls). Northumberland 26 March 2000 8:30am (mp3 288k)