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EGGS A bald eagle egg is slightly smaller than a domestic goose egg. The chick will measure 4 to 5 inches at hatching and weigh only a matter of ounces. Bald eagles incubate their eggs for about 35 days. They begin incubation as soon as the first egg is laid.The second egg usually appears within 36 to 72 hours after the first.Occasionally a clutch of 3 eggs will be produced.he chick will measure 4 to 5 inches at hatching and weigh only a matter of ounces. Bald eagles incubate their eggs for about 35 days. They begin incubation as soon as the first egg is laid. The second egg usually appears within 36 to 72 hours after the first. Occasionally a clutch of 3 eggs will be produced.
1 It took the Decorah Eagles 37 days in 2009 and 2011, and 36 days in 2010. 2  35 to 37 days is a safe bet. 3  From pip to hatch: Pipping occurs when the baby eagle's egg tooth first breaks through the eggshell. 4  It can take as long as a day for the chick to fully hatch.hat do Bald eagle eggs look like, and how large are they? Bald eagles lay white, oval shaped eggs. The eggs weigh approximately 125 grams or 4.4 ounces, and are on average about 2.9 inches long and 2.2 inches wide. Size-wise, they are just a tad smaller than a tennis ball, although tennis balls are round, not oval.