The Port of Portland is putting animals to work to take care of some general house keeping at Portland International Airport.

The Port of Portland hired 40 goats and a llama to take care of some thorny overgrowth on the property.

The Port of Portland hired 40 goats and a llama to take care of some thorny overgrowth on the property.

Courtesy of Port of Portland

The port hired a herd of 40 goats and a llama for some landscaping around the airport. The hairy crews will trim up some invasive plants, like blackberries and thistle, near the airfield for the next three weeks. The single llama will keep predators away “because of its size and more aggressive nature,” said the port in a statement.

A few dogs have also been placed on geese patrol in the undeveloped properties. The port regularly brings in a border collie named Fish to chase the honking birds away from the airport, working one to two hours a day during the week.

A number of bee hives are also back for research. Bridgetown Bees is experimenting with queens that have adapted to the Pacific Northwest’s climate to hopefully “improve the health of local pollinator communities.” Nearly 30 hives are housed on the port property now, and Bridgetown hopes to bring in 11 more this summer.