* Advantages:
* Larger size
* More powerful beak and talons
* Faster flight speed
* Greater hunting experience
* Disadvantages:
* Less maneuverable
* Less agile
* Less likely to surprise prey
Secretary bird
* Advantages:
* Smaller size (more maneuverable)
* More agile
* More likely to surprise prey
* More specialized for hunting snakes and small rodents
* Disadvantages:
* Less powerful beak and talons
* Slower flight speed
* Less hunting experience
Verdict
The eagle would likely win a fight between these two birds. It has the advantage in size, strength, and flight speed. However, the secretary bird could win if it was able to surprise the eagle and catch it off guard.