Aesop's Fables (1884)
237. The Cat and the Birds.
A Cat, hearing that the Birds in a certain aviary were ailing, dressed himself up as a physician, and, taking with him his cane and the instruments becoming his profession, went to the aviary, knocked at the door, and inquired of the inmates how they all did, saying that if they were ill, he would be happy to prescribe for them and cure them. They replied: "We are all very well, and shall continue so, if you will only be good enough to go away, and leave us as we are."
Aesop's Fables: A New Revised Version From Original Sources (translator not identified), 1884 . Illustrations by Ernest Henry Griset (1844-1907), John Tenniel (1820-1914) and Harrison Weir (1824-1906). Available online at Project Gutenberg.