What Kind of Farm Do You Run McDonald?

This morning on my way into work, I had Dawson with me. We passed a house that has roosters that run around wildly with no fence to keep them in and they were being LOUD. It was morning, after all and the sun would be up soon. So I was talking to Dawson about roosters and the cock-a-doodling they do.
Then Dawson breaks into song.

"Old McDonald Had a Farm" Dawson's version:

editors note: several e's and i's were neglected during the singing of this version

Old McDonald had a farm e-i-o.

On that farm he had a DUCK (proclaim loudly) e-i-o

With a moo moo here, everywhere, everywhere

quack quack

Old McDonald had a farm e-io

Yay! (followed by clapping)

Perhaps Mr. McDonald got a little greedy. -Got carried away with his farm and went all black market selling mixed breed animals?

Dawson hasn't bought any. He just sings about them.