This work was followed by Museum Ornithologicum in 1789, in which he described the birds in his collection. In 1779, Schäffer published the three-volume work Icones insectorum circa ratisbonam indigenorum coloribus naturam referentibus expressae, which included 280 hand-coloured plates of copper engravings, illustrating approximately 3,000 insects.
Schäffer's subsequent publication was Museum Ornithologicum in 1789, where he detailed the birds in his collection. Earlier, in 1779, Schäffer released the three-volume work Icones insectorum circa ratisbonam indigenorum coloribus naturam referentibus expressae, which included 280 hand-coloured copper plates depicting approximately 3,000 insects.