Greylag Goose
Whislt generally not a noctural migrant, they are always in the bay by our house and so need to be identifed to elimate them from any noctural calls. Certianly Whitefront, Pinkfeet and Barnacle Geese will all overfly at som,e stage..
This series of calls is made up from some from our house (04/05/2021 at 04:42), Rhum and Cork respectively.
In all the calls there are broad similarities. The following detials apply to the first two. |
The individual calls are between 0.5 and 0.6s long. They are made up of severla frequency bands. Ther first group fall between 1 and 1.5 khz and then there is a gap until 2.3khz. Each call is made up of four or five n notes and the bottom frequency band is in two bars, and in poor recordings appears as two tramlines.