Austin’s favorite four-legged trail landscapers are back — and they’re getting paid in snacks.

This weekend, the Trail Conservancy is bringing a herd of goats to munch on vegetation near the Texas Rowing Center along the Ann and Roy Butler Hike and Bike Trail. Their snacking will clear poison ivy and other invasive plant species in parts of the 110 unmowed acres managed by the nonprofit.

Instead of using chemicals or heavy equipment, the goats offer an eco-friendly solution to overgrowth problems on the trail. They’re also able to access dense areas that may be difficult for people to reach.

The public is invited to watch the goats as they work on Saturday and Sunday, but the Trail Conservancy asks that observers refrain from petting the animals, as they’ll likely be covered in oils from poison ivy.

The Trail Conservancy funds the goats’ visit through its Adopt-a-Goat program, which allows people to support a furry weed-eater for $25 a month. Donors who give $250 will receive a “goat tote” and a certificate with their goat’s name on it.