I have a flock of jungle hens and one rooster, and two of the hens have hatched chicks. One batch of chicks is about 6 weeks old, the other batch are 4 weeks old. The chicks are all still following their respective mother around. When will they stop this behavior, and start being independent? The entire flock is completely free-range, by the way, have been their whole lives, they just come to us for chicken scratch.