Hi, i am new to this forum. I own a wonderful Cobb hen that I rescued after a commercial chicken truck overturned. I have had her 3 months and she began laying eggs 2 weeks ago. She is now big, beautiful and very sweet. I have treated this poor thing for everything possible and she grew and thrived. I have always noticed that she breathes at night with her beak open and quite heavily. After reading other posts on this great site I think she may have gape worms and I want to treat her immediately. Can someone tell me what symptoms I should be looking for? Thank you for all your help.