During the mid afternoon when the winter sun was low in the sky and my walk was almost completed, I found this lone Goldfinch beside a lake. She was filling up on Alder seeds prior to roosting for the night. It was likely to be a cold night and she was making sure she had plenty of fuel onboard. Birds are warm blooded and its their main aim in life at this time to gorge themselves during the winter daylight hours in order to protect from the lower temperatures at night. Something we humans mostly take for granted, for birds its life or death.