In Animal Farm, Foxwood and Pinchfield are two very different farms, despite being neighbours. Foxwood, for example, is described as a "large" and "old-fashioned" farm with poorly-maintained hedges and worn out pastures. This is because its owner, Mr. Pilkington, is a gentleman who would rather spend his time hunting and fishing than tending to the various jobs on the farm.
In contrast, Pinchfield is described as being "smaller" and "better kept" than Foxwood and this is the result of its owner, Mr. Frederick, who is described as being "tough" and "shrewd." (See Chapter Four).
While Foxwood and Pilkington are very different farms, both are united by their fear of rebellion after the animals overthrow Mr Jones. Furthermore, from an allegorical point of view, both farms represent a European country: England is represented by the "substandard" Foxwood while the highly-organized Pinchfield symbolizes Germany. (See the reference link provided).
The similarity between the two is that they both are adjacent to Animal Farm and seek to benefit from Manor Farm and Mr. Jones’ downfall. However, typically, the two owners of the farms fought with each other and disagreed.
Foxwood Farm is not well kept, it is neglected, overgrown, and described as old fashioned. Its owner, Pilkington, enjoyed spending his time pursuing fishing and hunting. Pinchfield’s owner was much different. He is described as “tough and shrewd”. He also drives hard bargains and finds himself fighting others in law suits frequently. In short, Pilkington is described as more laid back and a little lazy, and Mr. Frederick, Pinchfield’s owner, is constantly fighting with people.
Foxwood Farm and Pinchfield Farm are the two farms that are nearest to what is orignially called Manor Farm and is later called Animal Farm (and is then Manor Farm again at the end).
Foxwood Farm is described as being bigger than Pinchfield Farm. However, Foxwood is not run as well as the other farm. Pilkington, its owner, is more interested in hunting and fishing. So his farm is a bit overgrown. Pinchfield is smaller, but it is run quite efficiently.
Pinchfield represents Germany under Hitler while Foxwood is supposed to represent England.