to Challenge Question #9
When will the chicks hatch for these 4 whooping crane pairs?
After learning that it takes about 30 days for whoopers to incubate, they added 30 days to the beginning incubation dates to get their answers.
But Consider This . . .
Those answers make sense, assuming that the eggs don't get stepped on by mom or eaten by predators; these are very real threats! But there's more to consider. Whooper eggs take 29 to 31 days to incubate in captivity. But in the wild (where these eggs are), they take 30 to 35 days to hatch! So you might want to revise your predictions.
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