Chickens (IMAGE) American Chemical Society Caption In a finding that could be a boon to poultry farmers and bird breeders, scientists have developed a new test to ease the sometimes difficult task of determining the sex of birds. Credit Courtesy of USDA Agricultural Research Service Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.