Bald Eagle Death Spiral
As they mature at the age of 5, Bald Eagles use the Death Spiral to determine the fitness of a potential mate.
The sky challenge is there to prove to each eagle that the other one is just as arrogant, assured, and fit as the other.
The eagles clasp each other’s talons and dare the other one to let go first.
The difference in the size of the smaller male to the larger female causes the birds to spiral around their axis.
Sometimes, the drive to win is so strong that the hold is not broken and the birds crash into the ground or the water.
Immature eagles practice this maneuver all the time.  In this case it is a pair of four-year-old bald eagles.
Death can occur.  These two immature eagles broke the clasp just as they got to the tree line.

First Nest
 
OH!!!!!!!!!!!!!!!!!
This morning I saw the FIRST CHICK.
That is Dad Petruchio landing with a fish.
The chick is sitting in front of Mom Kate.
The chick is a spiky white fuzz ball with a shiny black beak, looking slightly to the right.
I have enclosed 2 copies of the same photo because it can be hard to see chicks at this stage.
The red arrow in the second photo is pointing at the chick.

First Nest
The cove suddenly erupted in Mom Kate’s high pitched angry alarm calls.
This time the intruder was another bald eagle.
I looked toward the main lake and there was Petruchio making a high speed dash for home.
Dad Petruchio had a fish for his family.
The two-year-old bald eagle wanted to steal the fish.
The dash was on as both raced toward the nest.
Eventually there were two two-year-olds and a three-year-old trying for the fish.
Petruchio made it to the nest and the screams continued.
Finally he and Kate stand side by side and watch the intruders fly out.