"From the time we arrived to the residence to the time the father returned, it was 40 minutes. God knows how long they were alone before that. He was nowhere to be found," state police Trooper Thomas Robin said Thursday.
Police said the children's mother gave birth at the home about 90 miles (145 kilometers) north of Philadelphia at around 9 p.m. Tuesday. She suffered heavy bleeding and Kutz called an ambulance for her around 9:30 a.m. Wednesday. She was taken to a hospital and underwent surgery, according to Robin.
Robin said medical staff asked her, "'Where's the baby?' She said, 'The baby's at home.' That put up a red flag."
Kutz refused to tell police how long he'd left the children or where he went on Wednesday, Robin said.
The father said he used the cage as a makeshift crib to keep the toddler safe at night, the trooper said. There was a foam mattress and toys inside the cage.
"He says he would keep him there at night because he claimed he was crawling all over the place. He told me he's done it in the past, that it's not the first time he put him in that contraption," Robin said.
Kutz "really didn't seem very concerned" about leaving his children home alone, but the mother expressed alarm and "said this was never done on her watch," the trooper said.
The newborn was taken to a hospital for evaluation. The boys were placed in the custody of child welfare authorities.
This story has been corrected to show Cecil Kutz is 38, not 37.