1892.
Feb.2
(no 2)
Concord, Massachusetts.
To Balls Hill
Mass.                                                                                                                   
Concord.- quite as much whirring as usual although               
it went only a short distance and acted as if
undecided whether to immediately realight or not,
making as it were a halting flight. I have frequently
heard the vocal sounds just described on similar
occasions and also when a bird has started to
run a little way before flying. I doubt if they are
ever given by a bird in swift flight or by one
which rises strongly. They are perhaps oftenest
heard from a wing-broken bird just roused                       
from its place of concealment.
[margin]Ball's Hill[/margin]
  On my way across country from Holden's I                                                               
saw innumerable Rabbit tracks wherever there was
enough snow to show them well.  Doubtless a single
Rabbit will make many tracks in a night but
there was sufficient variation in the size of the
footprints to convince me that each [?] where I
saw them contained several of these animals.
The tracks followed more or less well-beaten paths
in places, in others wandered about, crossing and
recrossing openings in the bushes and winding about
among thin stems. The Rabbits had even visited
small, exposed thickets of willows and c[???]ls on
the river banks or meadows several rods from the 
woods. There was much variation in the tracks
that I saw today but as a rule the footprints
were squarely in pairs thus:[diagram]. Sometimes the
four prints were nearly or quite amalgamated, thus:
[diagram] or [diagram]. Those of the hind feet were always in advance.
I did not see a single track of this style [diagram].
Why?  Most of the tracks were on ice covered with
 [margin]Rabbit tracks[/margin]