“platforms to perch on” (The Telegraph) enerzijds:
Free range, barn eggs, organic... there is a baffling range of eggs on offer now, but what's best for the hens?
“Barn-raised hens can roam freely indoors and perform many of their natural behaviours, like dust bathing and scratching. They also have platforms to perch on to escape pecking and nest boxes for laying eggs. But most barn-raised hens stay inside all their lives and in comparatively crowded conditions, with up to nine hens per square meter. Beak trimming is routine.”
(
http://www.telegraph.co.uk/foodanddrink/foodanddrinkadvice/1... Wageningen UR anderzijds:
“In a few lands in north-western Europe, the system for keeping barn hens is comparable to the Dutch system.”
(
http://www.wageningenur.nl/nl/show/Dutch-egg-sector-seeks-ne... “In enkele landen in Noordwest-Europa worden scharrelhennen gehouden op een vergelijkbare wijze als in Nederland.”
(
https://www.wageningenur.nl/nl/show/Nederlandse-eiersector-z... Hoe dan ook: gallus in suo sterquilinio plurimum potest.