- The bird eggs hatch in mid-June. For 1-2 weeks after hatching, the chickens survival depends on the weather/temperature so they do not get cold or wet (and then freeze to death).
- The weather also affects insects/larvae and their activities which is important since they are practically all that the chicks eat during the first month.
In optimal conditions, the chickens can eat as much as they like while staying in terrain where they are hidden from predators. The worst possible combination is wet weather and poor access to insects. The worse the conditions are, the more the chicks have to run around and chase insects in open terrain and thereby expose themselves to predators.