Bald eagles lay a clutch size range of 1 to 3 eggs within 3 to 6 days. However, each clutch usually consists of not more than 2 eggs. Also, there have been occasional reports of 4 eggs but very few such cases have been documented.
The eggs are disk-shaped to oval with rough texture and are dull white in color. The length of each egg is about 5.8 to 8.4 centimeters while its breadth is 4.7 to 6.3 centimeters. On average, each egg weighs around 130 grams. The parents incubate their eggs for about 35 days. It takes about 1 day for a chick to pip the egg.
Buehler, David A. 2000. Bald Eagle (Haliaeetus leucocephalus), version 2.0. In The Birds of North America (P. G. Rodewald, editor). Cornell Lab of Ornithology, Ithaca, New York, USA. https://doi.org/10.2173/bna.506