The presence of a perch did not mean flight rehabilitation had begun.
It meant the eagle could resume more normal posture while remaining protected.
During the third week, the bird began preening around the chest and healthy wing.
It occasionally attempted to reach the injured side but was limited by the support.
Those behaviors gave staff useful information about overall strength and motivation.
The eagle remained intensely wary of people.
Whenever the enclosure door opened, it moved to the far side.
That was ideal.
Releasable wildlife should not become comfortable with human proximity simply because people provide food and medical care.
The rehabilitation team wanted a patient that increasingly viewed them as something to avoid.
A fourth-week set of radiographs showed more substantial callus bridging the fractures.
The alignment remained acceptable.
The bones were not ready for unrestricted use.
They were strong enough for the team to begin planning the next phase.
Support was gradually reduced.
The eagle was allowed more controlled movement of the wing.
The first attempts were stiff.
The right side did not extend as far as the left.
That was expected after weeks of stabilization.
Healing a fracture creates a second problem almost automatically.
Restricted motion protects the bone.
Restricted motion also weakens muscles and reduces joint flexibility.
The team now had to restore mobility without overwhelming newly healed tissue.
Gentle range-of-motion assessment was performed under controlled conditions when necessary.
The staff also allowed the eagle to resume natural preening and stretching as medical restrictions were relaxed.
Those voluntary movements became increasingly useful.
The bird knew how its body normally moved.
The first broad bilateral stretch came several days later.
The left wing opened fully.
The right opened only about three quarters as far.
The eagle held the stretch briefly and folded both wings.
No sudden pain response followed.
The next day, the right side extended slightly farther.
The process continued gradually.
Morris warned the staff not to interpret each small gain as proof of eventual release.
A healed fracture could still leave permanent limitations.
The radius and ulna needed not only union but precise functional alignment.
The surrounding muscles, tendons, and joints had to work normally.
Damaged flight feathers also had to clear one another through the wing stroke.
A bird could survive the surgery and still fail release criteria.
That was why the case remained guarded.
By the fifth week, follow-up radiographs showed strong progression toward union.
The fractures had become substantially more stable.
External support could be reduced further.
The eagle moved the wing more frequently.
The resting position became increasingly symmetrical.
There was no evidence of chronic infection.
The superficial wounds had closed.
Morris approved transfer to an intermediate rehabilitation enclosure once she was satisfied that a short accidental flap would not destroy the repair.
The new space contained low natural perches placed a modest distance apart.
The carrier door opened.
The eagle stepped out.
For several minutes, it stood on the floor and looked around.
Then it hopped onto the lowest perch.
The team left.
They did not force flight.
The first short flight occurred the next morning.
The eagle lowered its body.
Both wings opened.
It launched from the perch.
For several yards, the movement looked surprisingly good.
Then the right wing shortened its stroke.
The bird lost height and landed earlier than intended.
The landing was safe.
The wing folded normally.
No acute injury occurred.
The veterinary team reviewed the attempt.
The fractures had healed enough to tolerate basic flight.
The wing had not recovered enough to produce normal sustained power.
That result was neither failure nor success.
It was information.
“The X-ray can show us that the bones are joining,” Morris said. “It cannot show us whether the eagle is ready to live in the air again.”
The bird remained in the intermediate enclosure.
Perch placement encouraged voluntary short flights.
No one chased it.
No one repeatedly disturbed it just to obtain exercise.
Natural movement was preferable.
During the next several days, the eagle flew between perches more frequently.
The right wing gradually extended farther.
The first flights were shallow.
Later attempts gained more height.
Landing remained accurate.
The bird showed no sign that the fracture had become unstable.
Another set of radiographs confirmed continued union.
At that point, the team reduced the remaining orthopedic support according to the healing status.
The eagle’s own muscles now had to assume more of the work.
That revealed significant deconditioning.
Weeks of restricted movement had reduced strength through the right shoulder, chest, and wing.
The bone was becoming capable of flight before the muscles were capable of supporting normal endurance.
Rehabilitation therefore shifted toward conditioning.
The eagle began flying farther.
One strong flight was not difficult.
The second was weaker.
After several attempts, the right wing occasionally sat slightly lower during rest.
That detail mattered more than casual observers might expect.
A bird released into the wild does not get to stop after one perfect flight.
An adult Bald Eagle may need to make repeated takeoffs throughout the day.
It may cross open water.
Climb against wind.
Evade another eagle.
Move from one feeding site to another.
A wing that functions only when fully rested is not a functional wild wing.
The bird remained in care.
By the seventh week, the eagle was ready for the large outdoor flight aviary.
This enclosure allowed full-length flights, climbing, banking, repeated landings, and longer periods of sustained movement.
The transfer represented progress.
It also exposed weaknesses that a small enclosure could not reveal.
The first full-length flight was strong for the first half.
The eagle launched cleanly.
Both wings reached nearly equal extension.
It climbed.
Then the right side began to fatigue.
The eagle descended and landed on a mid-level perch before reaching the far end.
The flight did not injure the wing.
It demonstrated that rehabilitation had more work to do.
The bird remained in the aviary.
Over the following week, the distances increased.
The eagle began reaching the opposite perch.
Then it began climbing to higher levels.
The right wing no longer shortened its stroke as early.
The staff watched carefully after every period of activity.
Was the wing sitting lower?
Was swelling returning?
Was the bird reluctant to fly again?
Did landing become less accurate as fatigue developed?
At first, mild post-flight asymmetry remained.
Then it became difficult to see.
The damaged feathers posed another issue.
Several had been broken during the collision and the period beneath the vehicle.
A wing can heal structurally while damaged feathers alter airflow.
The team assessed whether the existing feather condition was compatible with normal flight or whether natural molt would be necessary before release.
In this case, the most important primary feathers remained functional, and the broken feathers did not create a degree of asymmetry that prevented progressive conditioning.
That avoided an additional delay of many months.
Brennan called the center periodically.
He never asked to visit the eagle.
The staff appreciated that.
He wanted updates, but he understood that reducing unnecessary human contact was part of rehabilitation.
He repeatedly returned to the moment beneath the SUV.
“I keep thinking about what would have happened if I had moved the car another ten feet,” he said during one call.
Morris answered carefully.
No one could know the exact outcome.
The wing was already fractured.