A few nice animal rights images I found:
An intensive dairy
Image by Farm Sanctuary
On California's intensive dry-lot dairies, cows live in manure laden holding pens.
(Feel free to distribute freely for not-for-profit use, but please credit Farm Sanctuary. If you are media and are in need of a high-resolution version of this image, please contact us at media@farmsanctuary.org and request the file "dairy2_300_1".)