Hi MJA, I don't think that the theory of three is better than the theory of four because the the three theory incorporates groups of four. As for the blue jays, you probably didn't notice but tri-interconnectivity was taking place (see the three theory). I agree with you that it wouldnt have made a difference if there were four instead of three, I think that you would have been equally amazed, however, if there were many more, as in 30, I think you would have been more amazed. I think most people are amazed when nature comes so close to habitation.
Humans have an affinity with the number 3, check out
www.threes.com, where my theory is mentioned in the Features section.