As of this writing, there are two eagle eggs at Decorah North. The youngest is just over 22 days old and the oldest is just over 25 days old. We anticipate that the oldest egg will hatch on or around the morning of March 23. . What do embryonic eagles look they look like as they develop and grow inside their eggs? Dr. Peter Sharpe from the Institute for Wildlife Studies developed a table of bald eagle embryonic development based