This probably sounds stupid but what does broody mean? I keep seeing it but I don't know what it means. Also... If a hen lays one egg a day or less then when they sit on them how do they hatch all at once? or do they? And doesn't that mean they're always sitting on the nest hatching more and more chicks? What am I missing? What time of day do hens usually lay? Mine free roam and I want to build a nesting area for them but they have different spots for different times of day. What are the most important things about the nesting box? Size? Covered? Location? Thanks!