138 Bird Comrades 



Usually they give some signal of their presence, either 

 by their vivacious " pe-chick-o-pe " or their childlike and 

 semi-musical calls; but there are times when a good-sized 

 flock of them will suddenly appear in the tree-tops above 

 you, and you cannot tell when they arrived, for you did 

 not see them there at all a few minutes before. 



