As a child I would listen with joy to the calls of the different birds that lived in my Princeton Junction, New Jersey neighborhood. Sometimes when I was walking home from school or the pool I would hear a bird singing to another bird and try to imitate the call, hoping to get some kind of response from another bird. I suppose I must have been doing it wrong because I never got any sort of answer from other birds. Now it looks like studies are showing the reason for my lack of answer may have just been poor grammar on my part. Grammar — in a bird call? Absolutely, according to a seemingly unnecessary study by Kentaro Abe of Kyoto University in Japan.