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Now that you have the revised version up, I'll tell you no one familiar with dinosaurs is going to believe your claims that Psittacosaurus just happens to preserve consistent gastric collections by accident or that Limusaurus is a bird. That's the definition of special pleading. If you actually think Limusaurus is a bird, wouldn't that be the big story? "Late Jurassic flightless bird found in China, not a theropod." But every phylogenetic analysis including Limusaurus has recovered it as a ceratosaur. So you're just brushing off every theropod worker as an aside? Similarly, at least Martin and Lingham-Soliar have claimed ornithomimosaurs are dinosaurs, not birds. So for you to claim differently because of gastroliths in Shenzhousaurus and Sinornithomimus should be pretty important news since theropods and birds are in your mind distantly related. It's so similar to my discussion with Martin where I asked if he thought tyrannosaurs were birds, and he said if they evolved from an ancestor with wings, then yes, but he didn't care/know. It's putting the evolutionary cart before the horse.