Couple of oviraptorosaur hand studies from the Idaho Museum of Natural History. Ovis are one of my favorite dinosaur groups (the other two are therizinosaurs and abelisaurs), so I'm super psyched that ovi eggs have been found in the Wayan Formation and their (for now rather conjectural) parent is the star of the museum's current dinosaur exhibit.
One thing I'm not sure many people realize or appreciate is that (most) theropods actually had an opposable first digit and could grasp things very similarly to humans. So dromaeosaurs were really even more capable of opening doors than Jurassic Park depicts*! :)
Ovis probably had quite a bit more feathering than this, including ample pennaceous feathering on the arm, but I omitted those feathers in the interest of modeling their very cool hands.
*The caveat here is that theropods could not rotate their hands at the wrist like we can, so they couldn't really grab a doorknob and twist at the hand; they would have to move their entire arm from the shoulder. Yes, I have overthought this.
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