<Tr> <Td> Bobolink </Td> <Td> AM - 20 </Td> <Td> Undamaged </Td> <Td> moored in a nest at the westerly end of the Coal Docks with Vireo and Turkey inboard, and Rail outboard . </Td> <Td> (53) </Td> </Tr> <Tr> <Td> Rail </Td> <Td> AM - 26 </Td> <Td> Undamaged </Td> <Td> moored in a nest at the Coal Dock with Turkey, Bobolink, and Vireo </Td> <Td> (54) </Td> </Tr> <Tr> <Td> Tern </Td> <Td> AM - 31 </Td> <Td> Undamaged </Td> <Td> moored berth B - 5 (north end of 1010 dock) undergoing upkeep alongside Argonne </Td> <Td> (55) </Td> </Tr> <Tr> <Td> Grebe </Td> <Td> AM - 43 </Td> <Td> Undamaged </Td> <Td> berth B - 20, Navy Yard, alongside Schley </Td> <Td> </Td> </Tr>

How many of the vessels docked at pearl harbor were war ships