Nicola Congdon and her mother Ann own about 60 retired hens and decided to knit them sweaters to keep them warm as they adjust to being free-range. They rescue and house the battery hens at their home in Cornwall, England. Unfortunately, the hens have spent most of their lives in cages to produce eggs. As a result, they can have difficulty adjusting to the natural weather outdoors. Some had plucked their own feathers out as a result of anxiety from the conditions in cages.

So Nicola started making sweaters for them to stay warm outside. They work really well, and the hens seem to be big fans.

Sources: YouTube