This document defines various poultry terms and identifies the characteristics of productive laying hens versus non-laying hens. It discusses the scientific name of poultry, different life stages of chickens, and parts of chickens and eggs. The document examines how to evaluate hens based on the bleaching of body pigment, condition of the abdomen, plumage, vigor, and head characteristics. It also covers candling eggs to examine the air cell, yolk, and other contents.