There are many terms involved with poultry which can be difficult to understand, so I am listing the basics for beginners in no particular order

Pair - one male and one female

Trio - one male and two females

Quartet - one male and three females

Pullet - female who has not had her first adut moult usually less than a year old

Hen - female after adult moult in poultry and also female turkeys

Cockerel - male before first moult

Cock - male after adult moult

Stag - refers both to turkey males and gamefowl males

Drake - male duck

Duck - female duck

Gander - male goose

Goose - female goose

POL - meaning point of lay at 20 weeks old

Moult - when a bird sheds its feathers and grows new ones

The Fancy/Fanciers - communal name for people who show/exhibit poultry

Pin feathers - when the feathers are newly grown and are covered by a protective, waxy membrane.

Feather-pecking - when birds peck out feathers of their pen mates

Mites - parasitic insects who live on poultry and in their houses

Worming - the removal of worms (de-worming)  in poultry by means of licensed, chemical supplement in feed. Flubenvet being the only licensed product available at present.

Lice - parasitic insects who live on poultry only

PCGB - Poultry Club of Great Britain, largest organisation involved with the promotion of the hobby and facilitators of the National Championship Show at Stoneleigh, held on 1st and 2nd December

DEFRA - Government Agency in charge with the registration and implementation of Government legislation regarding poultry

Utility - bird bred for its laying or meat production capabilities

Hybrid - commercially reared birds bred for their laying or meat capabilities.  Usually sex linkable as day olds

Sex linked - birds who have been designed to show pullets from cockerels at day old ie Rhode Island Red x Light Sussex thus avoiding the rearing of unwanted cockerels