Hi All: RE use of words '"synchronized" vs "asynchronized" to define Bald Eagle laying & hatching sequences.
I don't think I would ever have chosen these words for defining the laying and hatching sequence of an individual pair of eagles.
Bald Eagles generally lay their 2 or 3 eggs 3 days apart. After the mean 36 days of incubation then each egg would hatch 3 days after the previous egg. However, that assumes the female initiated incubation with the laying of the 1st egg. If the female did not initiate incubation until the clutch was finished then the eggs would all have a similar start date for embryonic development and for hatching. This latter example is customary for precocial species like wood ducks or geese whose broods need to all leave the nest together and follow mom.