Further to the post on the subject of Avian Influenza a few days ago, inevitably there have been more cases / outbreaks in the UK already, notably in Carmarthenshire and elsewhere. There are exclusion zones in place and specific rules relating to domestic birds.
For the best and most up-to-date information – please refer to the DEFRA web-site at https://www.gov.uk/guidance/avian-influenza-bird-flu
If you find a dead bird be very careful about handling it, H5N8 is not normally a risk to humans but do not take any chances… and do not risk transmitting it to any other birds, please see the guidance and notes at the same DEFRA web site and on the BTO web-site.