A testing program in Atlanta is using grazing sheep and goats to eat invasive plants growing by the airport.
Hartsfield-Jackson International Airport working on a program where 100 grazing sheep and a few goats are eating kudzu plants growing by the property.
The owner of Ewe-niversally Green said to NBC, "There are very few things that they turn away. They love poison ivy. They eat blackberries that have thorns. And they eat these things willingly. If they have options they will still select those types of foods."
In just a few days the herd has eaten through half of the weeds near the airport. The same herd was used this year to keep Atlanta city parks clean of weeds.
The test program at the airport, which lasts one week, is to see whether or not the animals can keep the area clean more efficiently and cheaper than machine or human landscaping.
The overgrowth of weeds affects pilots' line of site and hides animals that can be dangerous to planes.
Other airports are also using goats or sheep to clean up weeds. Chicago O'Hare is thinking of using goats and San Francisco International has used goats to clean up grass that could be fire hazards.