Plants safe for chickens???

I want to plant some things for my girls to nibble on, lay under, etc in their pen. They don't get to get out too often because of dogs. The list of no no's is pretty extensive. Any suggestions? Also looking for shade tree suggestions for just outside...or should we just cover the pen with some sort of roof? The pen is 16x20 and I have 4 girls.

The lists are long, ascholz, but sometimes not too accurate (my chickens have been roosting in a wisteria arbour for two years and have removed every new leaf each spring and are fine, although everyone lists wisteria as poisonous to them). The wisteria does look a bit stressed. They also love oxalis--again listed as poisonous.

I think, on the whole, they stay away from truly poisonous plants and can tolerate some as long as they are not forced to eat them exclusively. So you wouldn't want to pen them up with potentially toxic plants--but if they are just free-ranging a bit in the yard--they will probably be fine.

There are some plants, like Oleander, that are extremely toxic to almost every living thing, and I would concentrate on keeping them away from that sort of plant. I wish someone would make a more realistic list of toxic plants

I ordered some of this to plant for my chicken yard..
http://www.groworganic.com/item_SPI800_Omega3_Chicken_Forage_Blend_Irri.html?welcome=T&theses=4850562

Thanks Cat and ZZ! I ordered some of the chicken forage.

I also ordered some of this chicken forage. I have only four hens. I was going to put a row of sod for them to walk around on. I also heard that if your hens eat marigolds, their egg yokes will be a nicer yellow. Is that true?

Foxglove is also listed as poisonous and we have had chickens mow it to the ground and not a problem one, so who knows?

I ordered some of the chicken forage too. Now if it just stops raining long enough so we can pull our weeds, and plant it, that will be great. I'm just worried that when we finally get out of the cool rainy weather, it will turn 90 and dry every day and cook everything.

Images: I've not heard of that but I'm willing to try! At least it would add some color to their pen.

Elleisn: Thats exactly what happened here; it rained for three weeks straight then into the high 80's and dry! I've been watering like crazy.