I was woken this morning to the sound of swallows (låvesvale) outside and a flock of some 15-20 birds were feeding low over the tree tops encouraged northwards last week by the warm weather over the whole of southern Norway and a week of temperatures close to 20C and a maximum of 22C in Trondheim. The temperature has now plummeted 15-20C and it’s rained! The hazy dusty warm weather due to farmers ploughing the dry land (a month of drought) in combination with the arrival of Saharan dust and pollen laden air is replaced with a heavy snow warning, although it’s unlikely to be a frost here on the coast. So, those swallows are in for a shock!!