Fish:
* Larger trout species: Rainbow trout, brown trout, lake trout
* Pike: Northern pike, muskellunge
* Bass: Largemouth bass, smallmouth bass
* Walleye
* Burbot
* Bull trout
* Catfish: Channel catfish, flathead catfish
Other Animals:
* Birds: Osprey, bald eagle, great blue heron
* Mammals: Otter, mink, raccoon, bear
* Reptiles: Snakes, turtles
The specific predators that threaten greenback cutthroat trout can vary depending on the location and ecosystem. For example, in high elevation lakes with limited predator diversity, the main threats might be larger trout species and birds. In lower elevation streams with more diverse fish communities, they might be vulnerable to a wider range of predators including pike, bass, and catfish.
It's important to note that the greenback cutthroat trout is a threatened species, and it's critical to understand the threats they face from predators as well as habitat loss and other human-caused factors.