Snow, cold... and birds

Almost without realizing it, we reached Thursday. It has been a VERY cold week, with temperatures between -25 to -30 degrees Celsius. But, the city is used to these winters, with polar cold and lots of snow and it continues to work, people go to work, shops open, restaurants are full ... And yes, there are birds around too, sparrows, chickadees, blue jays, woodspeckers, grosbeaks and many others: