is without any doubt the sound of the koltrast, or the blackbird.
As the days get lighter and lighter and the weather warms (oh so gradually), they sing and remind us that they too have survived the winter. Perhaps they sing to let the other birds know it is time to return to the north.
While the blackbird might be native to Europe it was introduced to Australia, where it is less than popular and considered a pest by fruit-growers.
But whether I am at home in Melbourne (where the majority of the Australian blackbird population is) or at home in Sweden, the song of the blackbird reminds me that warmer weather is on its way. It is a lovely reminder.
Have a look at these great photos taken by Swedish photographer on the Imagine blog.