Hey I have a 2yr old white leghorn, she lays an egg everyday and has never been sick, she was fine this morning, but I whent out to put up our geese so that they wont get attacked by foxes during the night. she was up on her roost making this odd sound every time she breathes in and out. It sound like she has a deep sounding wistle stuck in her throat. I checked her over, felt her throat and crop but nothing. I sat her back down and she went right back to her perch and continued to make the sound. Does anybody know what is wrong with her?