What does the term "intermewed" refer to in falconry?

The term "intermewed" in falconry specifically refers to a bird that has been kept in captivity for a full year. This terminology is rooted in the traditional care and training of raptors, particularly in how long a bird has been away from the wild. When a bird is intermewed, it often signifies that it has been acclimatized to human interaction and the hawking lifestyle, which can lead to both increased trust and performance in hunting situations.

The other options discuss unrelated concepts within falconry. While techniques and training methods are vital in falconry, they do not encapsulate the specific and historical meaning of "intermewed" as it pertains uniquely to the duration of a bird's captivity and adaptation.