Click here for a SLIDESHOW of all the Medici Aesop images. On the left you see the first part of the story, where the bird is caught; then on the right, you can see the bat and the bird (I sure wish there were some higher-resolution images of the Medici Aesop online!).
M0401 = Perry048. Source: Camerarius 76. This is Perry 48. In Greek, the nocturnal songbird is called a botalis, and its identity is unknown. As a result, you can find a variety of birds in different versions of this fable. For preventative measures that come too late, see the story of the bear and his wife, #134.