A 12-year-old Harris’s Hawk died from a rare combination of two serious infections affecting its lungs and air sacs: a fungal infection (Aspergillus fumigatus) and a parasitic worm infection (Cyathostoma americana). This is the first documented case of these two infections occurring together in a hawk. The worms and fungus caused severe inflammation and tissue damage, ultimately leading to the bird’s death. This case highlights how multiple infections can work together to make disease more severe in captive birds of prey.