Calls to Colorado’s statewide child abuse hotline are up again this year, but child welfare officials have noticed an alarming trend: abuse and neglect is under-reported when teachers don’t have “eyes on kids.” Call data from the hotline’s first two-and-a-half years shows a significant dip in calls from June to August, when kids are out of school for the summer. Reports of suspected abuse or neglect fell 20 percent in summer 2016 and 21 percent this summer, a difference of about 2,500 calls per month.