Kingfisher found north of normal winter range

Photo by BarrytheBirder

 A few days of mild weather 

or global climate change?

Belted Kingfishers in southern Ontario, during a Canadian winter, usually restrict themselves to the north shores of the two southern Great Lakes: Ontario and Erie. My friend Mary Asselstine directed me to a Belted Kingfisher, in a storm-water retention pond in the village of Schomberg, near to where I live.   Schomberg is approximately 40 kilometres north of the Lake Ontario's north shoreline.   The question becomes is the kingfisher, currently at Schomberg, there temporarily because of several days of mild weather and open pond water, or is global warming having a behavioral effect.   The pond in question does have water slowly flowing through it on a constant basis, so perhaps it has not been ice-covered yet this winter and this kingfisher may have been there since last fall.   A fluke, or a sign of things to come?   Time will tell.
Please comment if you wish.
BarrytheBirder