A bald eagle has laid eggs in a nest fitted with a camera in the Sequoyah National Wildlife Refuge near Vian, Oklahoma.

The Sutton Avian Research Center based in Bartlesville has installed cameras at two nests in Oklahoma, one on a pole in Sooner Lake near Stillwater and the other in a tree near Vian.

This year the eagles that have used the Stillwater nest in the past decided to use a different nest, but the pair that's used the Vian nest before has returned and started the process of raising chicks.

Users noticed the first egg on the Vian nest on February 7, 2015. The second egg appeared on Wednesday, February 11. 

It's yet another success in the fascinating history of the Sutton Aviation Research Center, which celebrated its 30th anniversary last November. 

11/6/2014: Related Story: Bartlesville Research Center, Known For Bald Eagle Work, Celebrates 30 Years

The center set out in 1985 to reintroduce bald eagles to Oklahoma. According to Executive Director Dr. Steve Sherrod, there are now at least 120 pairs returning to Oklahoma every year to lay eggs.

The work has been so successful, bald eagles are now a fairly common sight in northeastern Oklahoma. For instance, Osage SkyNews 6 HD encountered a bald eagle soaring over densely-populated east Tulsa on Tuesday afternoon.

The center has also become a leader in the study conservation of birds, especially the Southern Bald Eagle. 

In addition to installing cameras on bald eagle nests, the center also attaches transmitters to young eagles and tracks them when they leave the nest. The result is a tremendous increase in the scientific understanding of eagles.