Dave, the also known by the less memorable moniker "specimen NGMC 91" was a juvenile dromaeosaur that became famous for his feathers. Or her feathers. I don't think we can tell. We don't really know its exact place in the dromaeosaur family tree either. First Dave was classified as a Sinornithosaurus, but the last I heard it has turned out to be closer to Microraptor.
I illustrated Dave with a protobeak, even though there seems to be no indication that such things existed in deinonychosauria. I think the feather covering should go further down the snout too.