Peter grinned. Here was a chance to tell Johnny Chuck something,
and Peter never is happier than when he can tell folks something
they don't know. "You'd know him if you didn't sleep all winter,"
said Peter. "Dotty the Tree Sparrow spends the winter here. He
left for his home in the Far North about the time you took it
into your head to wake up."

"Why do you call him Dotty?" asked Johnny Chuck.

"Because he has a little round black dot right in the middle of
his breast," replied Peter. "I don't know why they call him Tree
Sparrow; he doesn't spend his time in the trees the way Chippy
does, but I see him much oftener in low bushes or on the ground.
I think Chippy has much more right to the name of Tree Sparrow
than Dotty has. Now I think of it, I've heard Dotty called the
Winter Chippy."

"Gracious, what a mix-up!" exclaimed Johnny Chuck. "With Chippy
being called a Tree Sparrow and a Tree Sparrow called Chippy, I
should think folks would get all tangled up."

"Perhaps they would," replied Peter, "if both were here at the
same time, but Chippy comes just as Dotty goes, and Dotty comes
as Chippy goes. That's a pretty good arrangement, especially as
they look very much alike, excepting that Dotty is quite a little
bigger than Chippy and always has that black dot, which Chippy
does not have. Goodness gracious, it is time I was back in the
dear Old Briar-patch! Good-by, Johnny Chuck."