The life of a caged hen - SAFE | For Animals
What are Battery Hens? (with pictures)
Battery cage - Wikipedia
What Is a Battery Cage and Are Battery Cages Legal In the U.S.?
National plan to allow battery cages until 2036 favours cheap eggs over animal welfare
Egg Farming: Facts and Truth About the Egg Industry - GenV
Canada's egg industry | Winnipeg Humane Society
Poultry farming - Wikipedia
What Are Cage-Free Eggs? The difference between cage-free and free range
Egg makers are freaked out by the cage-free future
Battery cage - Wikipedia
UPC fact sheet on the Battery Hen
Battery Farms | The Story Behind Your Eggs
Thompson & Redwood on Twitter: "Chook Fact: FACT! Did you know that a chicken's body doesn't produce just one egg at a time? Internally an egg producing chicken can have several eggs
Inside the caged-egg vs free-range debate
The facts about battery cages | RSPCA Australia
Not just hens out of cages, we want hens out of farming! - Vegan Australia
21 Things the Egg Industry Doesn't Want You to See | PETA
If consumers knew how farmed chickens were raised, they might never eat their meat again | Farming | The Guardian
Exposed: The shocking and filthy conditions endured by supermarket hens in 'enriched cages' | The Independent | The Independent
21 Things the Egg Industry Doesn't Want You to See | PETA
Cage-free vs. battery-cage eggs | The Humane Society of the United States
Facts about battery hens or chickens – The Poultry Guide
10 reasons cages suck for hens | Animals Australia
Battery Hens - Hot Topics - Animal Protection - Voiceless
