Most of the human deaths so far have been linked to contact with sick birds.

A sick bird naturally will try to hide its health issues.

Those cases were traced chiefly to direct contact with sick birds.

They say that one day near Christmas he carried a sick bird into his house, where it died, perhaps in his hands.

Not only that but somehow he manages to sick this bird on us again.

Not even farmers who handled sick birds every day had become ill.

Teach children not to touch sick or dead birds.

In that sense, the cheap hawk is a sick bird.

They will also help determine if sick birds can successfully raise their young.

To reduce the spreading of the disease, sick birds must be removed and their litter changed.