Here's what we came up with for keeping our free-roaming chickens out of the raised beds:
http://portlandpeeps.blogspot.com/2010/05/garden-solutions.html
We built three cages for each bed so they can easily be pulled off when plants get too tall. I'm thinking things like lettuce, carrots, cilantro, beets, radishes grow low enough that the cages can stay put. But taller or creeping plants like potatoes, basil, tomatoes will get a head start before the girls can nibble or dig up the starts.
http://portlandpeeps.blogspot.com/2010/05/garden-solutions.html
We built three cages for each bed so they can easily be pulled off when plants get too tall. I'm thinking things like lettuce, carrots, cilantro, beets, radishes grow low enough that the cages can stay put. But taller or creeping plants like potatoes, basil, tomatoes will get a head start before the girls can nibble or dig up the starts.