Based on the provided table, what is the approximate cumulative time until the young bird is mostly self-sufficient after the first egg is laid?

Answer

Over two months (~71 days)

The table shows the cumulative time reaches approximately 71 days (4 days laying + 17 days incubation + 20 days nestling + 30 days post-fledging care), which is over two months.

Based on the provided table, what is the approximate cumulative time until the young bird is mostly self-sufficient after the first egg is laid?
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