chicken tractor

词源说明

So called because it serves some functions of a tractor, such as weeding and fertilizing. Attestations from the 1970s exist, according to the metadata connected with snippet views in Google Book Search results.

释义

名词noun

1A movable enclosure in which chickens can scratch the ground for food, allowing them to be pasture-raised (benefiting from grass, insects, sunshine, and breathing space) and offering benefits to crop rotation systems (e.g., insect control, soil manuring).