The birds themselves posed no threat, but their bizarre performance couldn't be construed as a good thing.

If the birds pose a minor inconvenience, be patient; they will soon leave of their own accord.

Three small birds abstractly conceived but realistically posed and a plate to be arranged with them cost $14.

The birds could pose a serious health risk for people who eat them in north Africa and southern Europe.

But "unless the bird poses an unnecessary risk to public safety, he will not be relocated."

As such, experts said, the wild birds pose a new danger of a far wider spread of the disease in Europe.

He said, "It is a very relaxing and satisfying way to spend a day, especially when the birds cooperate and pose nicely for the camera".

Any bird in the wrong place can pose such a danger, but it is the ever-present starling that pilots fret over the most.

The bird should pose readily and when viewed from the side should create a vase like or wide 'V' shape outline.

There is a prohibition against feeding birds at airports, due to the danger birds pose to planes.