So my hen is a little over 2 years, and she has had 3 baby chicks so far who were all born on 4th of July. I still think they're way too small to be outside in the back, so I've kept the babies and the mother hen inside our house with a large box about 5 ft. wide and 3 ft. high. The mother hen hasn't layed any eggs since she's started sitting on these last ones, and she has a bit of what sounds like wheezing coming from her throat. Her beak is a little open when she makes this sound, as if she's out of breath and needs water. But she doesn't want water which is strange. She eats and drinks regularly and I let them walk around and feed on veggies. Any reasons why she might be wheezing? It's very unsettling and I really want to help her. Thanks in advance!