In book fifteen, Ajax lifts an enormous pike some forty feet long, and uses it to vault from ship to ship. He is compared to an eagle in this passage. Like a golden eagle dive-bombing down
To a river bank where a flock of wild geese,
Or cranes or long-necked swans are feeding. (Iliad 15. 302-729) The act itself is incredible, and Ajax definitely is like an eagle swooping up and down the ships. It is also worth noting that the troops fighting the bloody battle below are compared to a flock of birds feeding, oblivious to what is coming above.
Hector is compared to a glorious horse in book fifteen. It is right after he has been strengthened by Apollo, the god of healing. He sprints down to join the fight, and to rally his soldiers to fight back.
Picture a horse that has eaten barley in its stall
Breaking its halter and galloping across the plain,
Making for his accustomed swim in the river,
A glorious animal, head held high, mane streaming
Like wind on his shoulders. Sure of his splendor,
He prances by the horse-runs and the mares in the pasture. (Iliad 15. 289-266) Once again...