Egg-laying dates vary throughout the U.S., ranging from October in Florida, to late April or even early May in the northern United States. The bald eagle nesting season tends to be longer in the southern U.S., and re-nesting following nest failure is more common there as well. In the Pacific Northwest, nest construction begins around January 1, and females typically initiate egg laying soon after February 1. Bald eagles lay one to four eggs a year (typically 2), which hatch after about 35 days of incubation.
Egg laying starts the last week of February and goes through March. Some re-laying in nests where eggs are lost will continue into April.
Egg Laying: 3 - 6 days
The female lays 1 - 3 eggs--most often 2. She doesn't usually lay one egg each day, so it usually takes her 3 - 6 days to complete her clutch. Each egg weighs roughly 110 - 130 grams. Adult females weigh about 4.6 - 6.4 kilograms.
Bald eagle eggs are unremarkable in appearance; dull white with occasional pale brown splotches, but not usually. They are shaped like most eggs, and weigh around 120-130 grams 28 grams/ounce); they range from 6-8 cm long (2.54 cm/inch) and 5-6 cm wide.
Caption Page: Nesting Facts
Number of Broods
Dull white, usually without markings.
Condition at Hatching
Covered with light-gray down; eyes brown; gape, legs, and skin pink.
Facts and Photos