To stew the hen, place hen, breast down, in a large stockpot. Add remaining ingredients and fill stockpot with water. Use a colander insert if you have one for your stochpot. It makes removal of the hen and vegetables much easier.
Cover and place on medium heat.
Bring the pot to boil. Turn the heat down to medium low and simmer for one hour or until the hen is good and tender.
Remove hen and vegetables. Discard vegetables.
Set aside hen to cool. As soon as it's cool enough to handle, remove skin and bones.
Shred the meat.
To make the salad, place meat in a large mixing bowl.
In a small mixing bowl, mix remaining ingredients to make the dressing.
Add to chicken and mix.
If mixture is too dry, add more mayo.
Taste and adjust for seasoning.
Chill before serving.