I have two homers, male and female, and they layed their first clutch and 18 days later they hatched, they are 9 days old now, I checked on them earlier today say around 3ish and the mother or father wasn't sitting on them, it didn't alarm me, because in the past few days she/he would get off randomly for about 5 minutes then right back on again, and when I handled them they were warm. I checked again about 6 hours later she was not laying on them. Then when I held them they were cold, though they had grain in their crop. I closed the opening to the outside of the loft and put the mother on the level with the nest(she and I have a very trusting relationship) she got on the nest immediately but still seems tense and doesn't seem as if she is trying to care for her babies, it's an hour later she is still on them, but still tense. Advice? Is there anything I should know or do? I'm a bit worried.