A  remote camera watching a bald eagle nest in Pennsylvania captured a heroic sight this week as two eagles braved a winter snow storm to keep their eggs safe and warm.

The Hanover “Eagle Cam” run by the Pennsylvania Game Commission, showed the male and female eagles taking turns sitting on the nest even as the snow piled up to the point of almost burying them.

Eagles use what is called a “brood patch” that develops during breeding to keep the eggs warm, according to the Commission.

The patch, which has no feathers but does contain a lot of blood vessels, acts as a conduit allowing the adult to transfer heat from their bodies to the eggs, the wildlife agency said.

The eggs were expected to hatch in a few weeks.

CNN contributed to this story.

You can watch the live camera stream at http://ow.ly/JYC1x