Assertion: raven's egg | /r/HasProperty | 2-6 eggs
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text: Figure it like this: it takes from one to two weeks to build a nest (always a new one with each nesting attempt), 6 days to lays eggs (2-6 eggs, average of 4.7 in my study), 19 days of incubation (begun with the penultimate, or antepenultimate egg, i.e., next-to-last or next-to-next-to-last egg, depending on clutch size), 35 days in the nest before fledging (30-45), and then 6 weeks to 2 months to feed the young to independence.