It was cold. The winter sun was rising reluctantly and shafts of sunlight momentarily threw the fog into tangible white blocks. Sounds in the woods were muffled. Invisible ravens called overhead and the planes took off one after another; their roaring lingering in layers above the mist.
Into this soft cotton wool world someone threw a grenade and the tree tops exploded in noise. I craned my neck back to see what bird or animal was responsible. A flock of small birds was whirling in the highest branches. The fog was too thick to make out colour and marking, only their size was discernible : blue tits? Chaffinches? Bramblings returning from the north? However numerous they were, such small birds could not be making this ear splitting cacophony. And then I realised, I knew this noise. This was mistle thrush turned up to 11! The crackle of mistlethrush is a sound of winter in the forest as they work through the mistletoe that grows on the high pine trees, but I had never heard them so loud.
They are highly territorial birds and will defend an apple tree covered in mistletoe from all commers, but I never knew they could repel a huge flock of finches deep in the forest by the sheer force of their voices. There were hundreds of finches foraging for seeds and insects in the tree tops, but they didn’t stand a chance against a couple of loud mouthed thrushes, who had this patch of woodland staked out for their own winter larder.