ReikiDave
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I'd say that crows have an easier time getting to be a breeder simply by the expanded options available in a family-unit-based environment. Rather than having to go off on their own and compete on their own, crows are supported in their efforts by their families. They also have the option of waiting while assisting their birth family. All around this is an easier system in with more options which to become a breeder. (IMO and based on the information learned in this course).
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I'd agree with Ben. I'm amazed at the nest to grave study !! And on a highly individualized level ! Bird by bird, year after year. I'm also amazed to learn of their longevity. I'd have thought crows lived somewhere around five to six years. Eighteen or nineteen !!! Wow !!
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