Goats return to O'Hare to graze on airport grounds

CHICAGO (WLS) -- The goats are back at O'Hare to help keep the airport property nicely trimmed.

They're joined by sheep, llamas and burros. The animals are an eco-friendly way to clean up areas that are hard to mow using traditional landscaping equipment. They can even gobble up poison ivy without any ill effects. There are 37 animals so far and more will be added.

This is the second year they've been used.