As childcare & play providers please read and share (https://www.gov.uk/guidance/avian-influenza-bird-flu) It states people who keep poultry, including ‘backyard flocks’ which would include childcare providers who keep ducks and chickens, should keep them housed to keep them apart from wild birds.
It also contains the following advice: Some strains of avian influenza can pass to humans, but this is very rare. It usually requires very close contact between the human and infected birds. Based on what we know about the H5N8 strain, the risk to public health is considered very low. There have never been any recorded cases of H5N8 in humans.