RFC Errata
RFC 6214, "Adaptation of RFC 1149 for IPv6", April 2011
Source of RFC: INDEPENDENT
Errata ID: 4668
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: YC Lee
Date Reported: 2016-04-14
Held for Document Update by: Nevil Brownlee
Date Held: 2016-04-28
Section 8 says:
Notes:
In some countries you are be required to obtain a proper license from authorities to keep some kind of birds. It should be addressed in RFC.
Example: http://www.afcd.gov.hk/english/publications/publications_press/pr1037.html
"Unauthorised keeping of five kinds of poultry -chickens, ducks, geese, pigeons and quails – is an offence..."