Larsen children's 37-piece puzzle - Big tractor in a field

The tractor is the standard and reliable working machine on every modern farm. Tractors can perform a wide variety of tasks - from hauling loads to pulling ploughs and assisting with planting. There is nothing a good tractor cannot do on the farm! A lone cow watches this farmer as he works his land. What might the cow be thinking while watching this machine? Some of the parts are shaped like dinosaurs and cars.