Jordan Lake. We can look at this photo in two ways. We can see that the female 3-year-old bald eagle has a wing length of ~7ft. The female osprey has a wing length of ~ 5ft. The fish, well, has a fin length of ~ 4 ins. Or we can look at the fact that the bald eagle weighs ~ 12#, the osprey weighs ~ 6#, the fish that the eagle wants to steal weighs about a pound… the osprey is carrying ~ a quarter of its own weight.