When is the breeding season for tree squirrels in the Northern Hemisphere?

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Do squirrels forget where they hide their food? — squirrel Overview of food-burying behaviour in squirrels.

For tree squirrels in the Northern Hemisphere, the breeding season can be quite extensive, typically extending from December to September. Depending on the specific species, this period may result in one or two litters per year, with each litter averaging between three and seven young.1

To learn more about these rodents, you can explore the full squirrel entry on Britannica.