 The semantics of bare plurals and mass nouns involves a particular notion of kind: kind formation for the purpose of the semantics of bare plural and mass nouns is unrestricted. Bare plurals like typographical mistakes, old pink buttons or cheap red wine are semantically entirely on a par with pigeons, displaying the same semantic characteristic readings of predicates. Those would hardly be considered kinds in folk metaphysics or the ontology of the real, where not just any instantiated (non-natural) property corresponds to a kind. 