As you can see here:
“They mate very early in the year in January or February, and they lay their eggs very early, so the weather is very bad with snow and ice like we’ve seen here the last couple weeks,” Robinson said. “The big advantage of laying their eggs early is that the young ones hatch early. And when these young ones hatch in mid-March, there will be plentiful food.”
The eagles’ thick down and feathers help them survive the cold temperatures, while their sharp beaks and talons allow them to fight off anyone who threatens the nest.
The female eagle is the larger of the two, and must constantly care for the eggs so they hatch successfully. That means making sure the eggs are always touching the bare skin on her belly, known as a brood pouch, and turning the eggs every hour so they heat evenly. She also has to fluff up the dry grass that acts as bedding so that the eggs have a soft and cozy place to rest.
Once the babies hatch, the work doesn’t end for the devoted parents. The young stay in the nest for about three more months while they gain the strength to fly and then, even after leaving the nest, their watchful parents continue to feed them and teach them to hunt.
People from around the world have been watching Smitty and Bella care for their babies on the National Conservation Training Center’s eagle nest livestream. And seeing the eagles’ loyalty to their eggs couldn’t be a more touching reminder of a parent’s love.