Avian Influenza Prevention Zone still in place as of 20/4/21. High standards of biosecurity are still required.
At 23:59 on March 31st the housing order ceased. https://www.gov.uk/guidance/avian-influenza-bird-flu#latest-situation
Declared November 5th 17:00 ; Amended to include from Housing Order December 11th 17:00.
“Bird gatherings are not permitted under the Avian Influenza (Preventive Measures) (England) Regulations S.I. 2006/2701 (“the Preventive Measures Regulations 2006”) unless licensed.”