The osprey is notable as the best example of the predator-prey relationship within the Mount Henry Peninsula region. It is an ecological specialist (it depends on particular types of diet or habitat). The osprey's main diet is fish, and its opposable back claws let it grasp fish as it dives. It is believed to be the only bird in the area to fully submerge itself in a dive. The osprey feeds on nearly any fish which it can digest - fish species identified in the Mount Henry-Canning River area are black bream, Swan River goby and Perth herring.