The Birdcather, the Partridge, and the Cock

A BIRDCATCHER was about to sit down to a dinner of herbs when a
friend unexpectedly came in. The bird-trap was quite empty, as
he had caught nothing, and he had to kill a pied Partridge, which
he had tamed for a decoy. The bird entreated earnestly for his
life: "What would you do without me when next you spread your
nets? Who would chirp you to sleep, or call for you the covey of
answering birds?' The Birdcatcher spared his life, and determined
to pick out a fine young Cock just attaining to his comb. But
the Cock expostulated in piteous tones from his perch: "If you
kill me, who will announce to you the appearance of the dawn?
Who will wake you to your daily tasks or tell you when it is time
to visit the bird-trap in the morning?' He replied, "What you say
is true. You are a capital bird at telling the time of day. But
my friend and I must have our dinners." Necessity knows no law. - Aesop

[Courtesy of Aesopfables.com]