It's the RED THROATED DIVER - perhaps it would have helped to add it to the information you've provided fiction-factory (it's a lot to read and the name is easily missed).
'gos' (Old English) is given in the Chambers entry for 'goose'.
Variations in the rain goose's call are said to predict rain.
Hope you don't mind me mentioning it but the wrong bird seems to have been selected.