All the freecycle groups I look at in my area are geared toward recycling old items and many specifically say no pets. I put my chicks up on craigslist this afternoon and am emailing back and forth with someone now. Craigslist also doesn't always allow animal posts or giving away animals free. The livestock section you can get away with it more than posting to the pet sections even if your chickens are pets. It's kind of hard to find good places online to give away chickens.