New EU legislation will ban the use of battery cages for egg-laying hens from 2012.
It is claimed that the hens live in conditions that do not conform to organic regulations.
Then growers put the hens in bigger buildings and in cages to fit more in.
The biggest threat comes from foxes which would happily make a meal of free-ranging hens.
But the production methods are cumbersome: typically, growing viruses in hundreds of millions of hens' eggs.
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But she also drives individual hens to the veterinarian, giving her breakfasts an impressively huge carbon footprint.
But she currently has a list of over 100 people who are waiting to rehome the hens.
BBC: NEWS | UK | England | Battery hens saved for retirement
For Americans who are concerned about eating locally or organically, hens can help.
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In the height of winter, cold temperatures slowed the rate of lay as hens sought to preserve their energy.
An EU ban on battery cages saw better conditions for egg-laying hens.
And almost nine in ten of 32m egg-laying hens are kept in cages.
So growers started putting hens in buildings so the hens paid less attention to the weather and laid eggs more consistently.
Pet-Tayto Corner features rabbits, ducks, geese, pheasants, 10 different types of rare birds and lots of especially colourful and unusual hens.
So far, the charity has rescued nearly 30, 000 hens, which otherwise go into the human or pet food chain after slaughter.
BBC: NEWS | UK | England | Battery hens saved for retirement
Land O' Lakes sells Omega 3 Eggs, laid by hens that ate feed spiked with Omega Protein's Virginia Prime Gold fish oil.
Five miniature hens have been seen at a Norfolk roundabout, once well known for being the home of a flock of hens.
Hens lived at the site for several decades before the A143-B1332 roundabout was built, when it became known locally as chicken roundabout.
But hens were fickle and laid different amounts, less in the wintertime.
But at the moment we're looking at a situation where there could be 80 million hens still in illegal cages in Europe.
And chickens across Europe will breathe more easily after the implementation of an EU directive banning traditional battery cages for egg-producing hens.
The UK is considering imposing an import ban on eggs from hens kept in battery cages to protect domestic producers, a peer has said.
Novartis, a big Swiss drugmaker, has invested in production facilities in America that use cell culture, rather than hens' eggs, to develop the jabs.
ECONOMIST: Big drugs companies see a bright future for vaccines
Jane Howarth, from the British Hen Welfare Trust, said over December volunteers had re-housed 6, 000 battery hens, with just one more to be rehomed.
In October a Facebook page was set up to campaign for a permanent memorial to the hens to be put up on the roundabout.
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"We had rescued hens whose beaks had re-grown, but they were deformed like scissors - where the top beak grows off to one side, " she said.
But if the company is shut down, it won't be because of the appalling conditions at its barns--which house 7 million hens--scattered across central Ohio farmland.
Meanwhile, the prince's Maran hens and eggs won prizes at the show - after he entered them for the first time in the Fur and Feathers pavilion.
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The babies, who were all around six-months-old, were randomly selected to receive either regular eggs, eggs enriched by feeding hens diets rich in n-3 fatty acids, or nothing.
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