labels on x-axis
 

I have two separtate charts that I have questions for. With the first chart I
am trying to graph a multitude of variables. I am graphing the diets of two
different species for two different seasons. On the Y axis I have the
percent of vegetation consumed and on the x axis i have the type of
vegetation consumed. I have two different colored bars to indicate the
different species, however, I want to put summer and winter below the type of
vegetation consumed to indicate the two different seasons. Is this possible?
My second problem is with a graph with error bars. I am graphing the heights
of males and females and need to place error bars on each graph. Because I am
using males and females I put each in a separate series and now I can not get
the label on the x-axis to appear correctly. All it is saying under the
x-axis is males, rather than Males......Females. Thanks for any help at all!