A restriction of movement has been introduced for kept birds after reports of people keeping exotic creatures, including emus.

The Department of Environment and Natural Resources said that the restriction will take effect immediately and remain in place until September 21.

A spokeswoman said: “The restriction applies to poultry, backyard chickens, pet birds and other birds kept by owners.

“It does not apply to birds receiving veterinary treatment, whether at a veterinary clinic or in the home.

“This precautionary measure follows an investigation into the importation and keeping of several exotic birds, including emus.

“During the investigation, officers identified birds that appear to have entered Bermuda without the required approvals and whose origin and health status cannot be confirmed.”

The spokeswoman said there was no evidence of a disease outbreak in Bermuda, but because the health of the birds cannot be verified, the department was taking precautions to reduce the risk of any disease spreading while the situation is assessed.

Emus, native to Australia, are among the largest birds of the planet, with adults standing more than 6ft tall.

A source familiar with the matter said he was aware of a person smuggling three emu eggs into the island, although he was unsure how the eggs, which are “quite large”, made it to Bermuda.

He added: “It hatched, and this thing has grown to be a big monster of a bird.

“They’re big, like ostriches, and they’re not allowed in Bermuda.

“I could see the aquarium wanting to bring them in for spectator purposes, but I don't know what this person was thinking.”

The government spokeswoman explained that the restriction of movement, made by the Chief Veterinary Officer under the Agriculture (Control of Animal Diseases) Regulations 1947, was important to ensure the safety of people and the island’s birds.

She said: “Some bird diseases can affect poultry, pet birds, wildlife and, in some cases, people.

“Bermuda’s farming community, bird owners and natural environment all depend on keeping these diseases out of the island.”

Anyone who owns birds was asked to keep them securely housed where possible and to avoid moving birds between properties or giving them to others during the restriction period.

Owners were further urged to prevent contact between pet or farm birds and wild birds and practise good hygiene when handling birds, their feed and their enclosures.

Bird illnesses and unusual deaths should also be reported to the department.

The spokeswoman added: “The department appreciates the public’s co-operation as this precautionary measure helps protect Bermuda’s agriculture, wildlife and animal health.”