A worldwide community photographing and learning about wildlife
Hyla chrysoscelis
Many states have an overlap of two species: Cope's (Hyla chrysoscelis) and the gray treefrog (Hyla versicolor). It appears via the website in my ID suggestion that Nebraska does not have Hyla versicolor. That's why I offer Hyla chrysoscelis as the suggestion.
Also, are all your other spottings this same frog? If so, they all need to be combined into one spotting. Thanks and welcome to Project Noah!