Police are urging residents to keep their dogs leashed when walking at Waveny following a report that coyote charged one there. At about 7:40 p.m. on April 22, a resident told police that a coyote emerged from the woods and ran toward his leashed dog while they walked in the park. That could be a sign that it was an unhealthy animal, according to Officer Allyson Halm, head of the New Canaan Police Department’s Animal Control section. “If there’s a den in the area then certainly the adults will be more protective,” Halm said. “It’s also possible that the animal wasn’t a healthy animal.