The Unkindness of Ravens

Have you seen The Birds and First Blood, original avian terror and disgruntled war vet films. Then there's nothing new here as with all films today, same old same old. But half an hour waiting for something other than characterization or scenic ambiance is too much. be warned the great reviews seem to be those who invested in this, I'd rather watch aforementioned or Alien / Predator / Terminator for the umpteenth time, anything with a new slant.