Pine siskin, Rondeau Provincial Park, Ontario, Canada, Nov 13, 2018

This siskin hit a window and sat on the tarp covering our lawn furniture.
After a few minutes it flew away.
Spinus pinus
Pine Siskins get through cold nights by ramping up their metabolic rates—typically 40% higher than a “normal” songbird of their size. When temperatures plunge as low as –70°C (–94°F), they can accelerate that rate up to five times normal for several hours. They also put on half again as much winter fat as their Common Redpoll and American Goldfinch relatives.
source - https://www.allaboutbirds.org/guide/Pine_Siskin/

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