This is a strange question, so be prepared for a strange answer. Great Horned Owls will not eat Eagles, but sometimes Golden Eagles attack Great Horned Owls!
Yes, if the cat is in the wrong place at the wrong time, the great horned owl will catch and eat the cat. This is not a common situation but probably does happen once in a while.
A great horned owl will take pretty much anything smaller than itself so yes it would eat a bluejay although a single bluejay would probably only be an appetizer to a great horned owl.
Yes they do. As well as hawks.
Yes, but only if food is scarce.
no they do not
no they don't
It is not common for a great horned owl to eat a fox, but it does sometimes happen.
mostly because snowies are among the larger and more powerful owls and it would be very difficult for a Great Horned to hunt one. Great horned owls are sort of famous for being 'cannibals' and eating other owls, but Snowy owls are quite large for owls, and they are in fact larger than Great Horned owls. when hunting for food, owls usually wont try to attack anything larger than themselves.
Great Horned owls and Raccoons
The Great Horned Owl doesn't have many predators. They can eat prey up to about 4 times their size. Yeah. Vicious animals. Editor: well true
Yes, the Great Horned Owl preys upon falcons.
insects
Yes. Eagles are one of the platypus's natural predators.
No owl in North America eats adult ducks. Great Horned Owls may attack ducks in flight but this appears territorial. Owls can attack and eat ducklings.
great horned owls eat mainly rodents,but this powerful bird will eat anything it can kill. this may include other birds at times, and even mink
The great horned owl's habits are to kill and eat all other types of owls because they are cannibalistic retards.(thats just my opinion