Are great horned owls prey to any other species?
I'm doing a report on these owls and also on a tree called the Red Alder. I am due to leave for Washington state soon and my report on these species that are native to Washington is due tomorrow. I also need to draw pictures that clearly depict the species, and I can't find a good picture of the tree! Please tell me if you can 
Red alders are great for providing nitrogen to the soil here is a picture of one.
Owls are good predators here is a site for owls.
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