Police in Round Rock tried for hours on Thursday to corral four emus on the loose that have been roaming through a residential area in the Austin, Texas, suburb and evading capture, a spokeswoman said. “It has been one of those days,” Round Rock police spokeswoman Angelique Myers said. The owner apparently has been identified but police are still not sure how the emus made their way to streets in the city of about 110,000 people, she said.