This song is all about a big fat heavy bird who's got a heart of gold.

It is generally the heavier bird who wins these fights.

Being a large and heavy bird, it avoids flying if possible.

Though a large and heavy bird it has an easy, bounding flight.

They are heavy, muscular birds that lay brown eggs and require little feed if allowed free range.

And they were the heaviest hung birds I ever seen.

I thought heavy birds were "hard-wired" to walk short distances.

It is thus one of the world's heaviest flying birds.

Then the heavy bird got up again and went on fishing, flying mostly into the sun so that its big shadow would give no warning.

One heavy bird, I said, trying to imagine the duck covered in gold.