Yet more proof of the importance of this activity in medieval society was the origin and massive proliferation of a specifically associated literary genre: falconry treatises. The 500 manuscripts of approximately 150 treatises that have survived are one of the principal sources for studying medieval falconry. Their content includes ornithological, hunting and above all medical aspects, and clearly shows that taking care of birds was a serious concern for hunters, and that this was not an autonomous activity, but it was related to other medical practices, especially human medicine.
The early vernacularization of this technical genre is without doubt of great interest for the study of Romance languages and literature, and also a very important aspect for studying the social history of science. The presence of falconry in medieval literature has been the object of study on several occasions, particularly in France and England. In the Catalan cultural area, for the moment we only have some very isolated studies (of specific passages), or general ones on the animals in Catalan literature.
Clergymen too, like Francesc Eiximenis or Vicent Ferrer, considered it necessary or appropriate to refer to falconry, the birds and the hunters, to direct their criticisms, or as elements suitable for constructing similes and metaphors in their sermons. All this is merely yet more proof of the great presence of this activity in late medieval society in the Crown of Aragon.