Chanting "let the water flow," about 4,000 residents joined a convoy of trucks from around the country yesterday in Klamath Falls, Ore., to protest the federal government and demand more irrigation water for their farms. This spring, the feds shut off the water to protect endangered fish, and the small amount of water released earlier this month is expected to run out later this week. The farmers and their supporters described themselves as patriots taking on the Endangered Species Act. Conservative talk-radio host Roger Fredinburg yelled to the crowd, "We’re taking it [the water] back — you greenies can’t have it."