We know that squirrels make the most of fall’s plenty by hoarding nuts for the winter, but the fact that birds also store, or cache, food goes largely unappreciated. Through clever observation and experiments, biologists have found that food caching (from the French cacher, “to hide”) has developed to a high art in some birds.
Take the chickadee, for instance. Chickadees put tens of thousands of food items a year into short-term storage. They usually retrieve and eat the food in the space of several days. Each food item is cached in a different place to make it difficult for thieves to steal all the food at once. When hiding a new item, they remember their previous storage sites and avoid placing caches too close together.
» Continue Reading.