Unfortunately, orders are closed for July 24 at my place. You should email David Evans at Marin Sun Farms (david@marinsunfarms) and see if he has any more chickens left. He'll call you for credit card information and then he drops them off at a pickup site in SF (Potrero Hill area).
You can join as many groups as you like. Just click on Groups at the top, select the group that you want and join it.
If you're looking for chickens, Marin Sun farms is doing a delivery in SF next week , July 24th. (Click on Home, go to the forums at the bottom, click view all, and select the Marin Sun ad--the one with the dog, to get Dave's contact info.)