Student Birder

      I sent two comparison studies--one of the two acorns and leaf types in the northern red oak and the pin oak. The second is a comparison of the male and female flowers on a single oak tree.  Oaks are monoecious and so have both male and female reproductive flowers on the same tree.  It was interesting to read about this and realize that some spring allergies come from the pollen from the male flowers that will open up very soon. -- Trudy I am not sure you got the drawings.  I will add them again to this submission.