bobolink, thrush
or sparrow, the song or call is so exactly imitated as to deceive
the most experienced naturalist, and even various birds themselves.
Of course this requires practice, but even a tyro may soon learn
to use the whistle to good advantage.

The clap net commonly used, is a large contrivance--so large that
several hundred pigeons are often caught at once. It is "sprung"
by the bird-hunter, who lies in ambush watching for the game. The
net is generally constructed as follows, and may be made smaller
if desired:--

[Page 73]
Procure two pieces of strong thread netting, each about fifteen
feet in length, and five feet in width. Four wooden rods one inch
in thickness and five feet in length are next required. These may
be constructed of pine, ash, or any other light wood, and one should
be securely whipped to each end of the netting.

Now by the aid of a gimlet or a red-hot iron, the size of a slate
pencil, bore a hole through one end of every piece one inch from
the tip, taking care that the ends selected lay on the same side of
the net. The other extremities of the four poles should be supplied,
each with a large screw eye. Four pegs are next in order--one of
which is shown separate at (_P_). It should be about eight inches
in length, and three inches in width, and an inch in thickness, and
sharpened to a point at one end. The other end should be supplied
with a notch two inches in depth and of such a width as will easily
secure the perforated end of one of the poles already described.
By the use of the gimlet or a red-hot nail, a hole should now be
bored through the side of every peg across the centre of the notch
for the reception of a wire pin or smooth nail.

The nets may now be rolled up on the poles, and the trapper may
thus easily carry them to his selected trapping ground. This should
be smooth and free from stones and irregularities. Unroll the nets
and spread them flatly on the ground, as seen in the illustration.
Let the perforated ends of the poles be innermost, and allow a
space of six feet between the inner edges of the nets. Draw the
net flatly on the ground, and drive one of the notched pegs at
each of the inside corners, securing the poles into the slots by
the aid of the wire pins or nails. Next cut four stakes eight or
ten inches long. The places for these may be seen by a look at
our engraving. Each one should be inserted _five feet_ distant
from the notched peg, and _exactly_ on a