Canada Jays are birds of northern North America and the Rocky Mountains. They survive by caching reserve food supplies under tree bark and, using their sticky saliva, beneath lichens. Stranger yet, Canada Jays breed in the late winter, even by early February. They are known to incubate eggs when outdoor temperatures are as low as -30˚ C. They do not attempt second broods when the weather is warmer. Strickland and Ouellet (2020) suggest that Canada Jay populations are declining in the southern edge of their range due to global warming causing the jays’ food storage to spoil.

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