UP by Big Bear Lake in our local mountains there is a breeding pair of eagles and some years back they placed a web cam that over looks their nest - - this is Jackie and Shadow, they just hatched a chick a few days ago which in this picture is actually being kept warm under dad, the larger one standing is mom, Jackie. Jackie is 10 years old and Shadow is 8.
Edit - if you google Big Bear Eagle Camera you can find this nest cam, and they also have a second camera placed some distance away that shows the tree from a distance, they say this nest is 140 feet off the ground and the average eagles nest weighs over 2,000 pounds