First this tractor pulling a raker went by fluffing up the newly mowed grass.
It all became clear as the tractor came to a stop and began to raise its rear cover.
Out came an "egg", a neatly rolled bale of hay.
The tractor pulled off to gather more grass to create another bale.
Before long the field was dotted with neatly rolled bales.
Lifted it, and neatly placed it in a truck on top of other recently picked up bales.
Before long the field was cleared, ready for the coming winter.