The term 'brooding sorts' refers to two distinct types of people or animals. The first type is 'LONERS, ' which are individuals who prefer to be alone and avoid social interaction. The second type is 'HENS, ' which are female birds that are known for their nurturing and protective behavior towards their young. Both LONERS and HENS are often seen as solitary figures, but they both have a strong sense of responsibility and commitment to their families.