We are very new to chickens, and our first little flock is about 15/16 weeks old. We free range in our fenced in back yard during the day. Today I went out to throw them some treats and our yellow sex link would not come out of the bushes. Upon closer inspection she had made a nest in the mulch. Of course my curious 2 year ran up to pet her because she was so still. She didn't move at first (very unlike her to be docile) and when she finally got up she was waddling and kind of fell over. She was really pruning her back a lot too so I really thought a hawk had unsuccessfully tried to snatch her. This went on for about 10 minutes, the waddling, limping, falling over. Then when I checked on her again, she's running around like normal, eating, like nothing ever happened. This isn't egg laying behavior is it? And isn't she way too young anyway? I have a video of the bizarre behavior but I'm not sure if I can upload vids on here. Thanks for any insight for us newbies!