I have just taken in two feral kittens yesterday that appear to be about 5 weeks old. One is a calico and is very tame, she hasn't hissed once and I can pick her up and pet her, but the other kitten is orange and is very skittish, and I think gets the calico kitten riled up. This morning I was moving them into a different box and the orange one darted out and hid in a corner and then the calico darted out and went behind the refrigerator and they were mewing at each other and now they are both behind the refrigerator in a little space underneath it. They ate the kitten food I put in the box with them yesterday and I have put out a dish of kitten food and water and tossed little bits of chicken nearby but they haven't eaten any of it so far. What should i do?