According to my favorite site for bird information, All About Birds, the population of American Robins is stable or increasing but life of a robin is filled with risk: “An American Robin can produce three successful broods in one year. On average, though, only 40 percent of nests successfully produce young. Only 25 percent of those fledged young survive to November. From that point on, about half of the robins alive in any year will make it to the next. Despite the fact that a lucky robin can live to be 14 years old, the entire population turns over on average every six years.”
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