I have a young pigeon, maybe a litte over 4 weeks old, that I think might be in poor health. At first when I got her she seemed active and healthy, but recently she has begun to be very lethargic. All she does is sit in the sun all day and puff up her feather like she's cold. She also closes her eyes. Her droppings were green and watery, and one even had worm-like particles in it. She's also not very alert. I'm worried!. For the next few days however she looked fine. Today I noticed though that she has begun to puff up a little again, but her droppings look fine. She also often opens and closes her beak as if she's clearing it or something. She also quietly peeps every 5 seconds. I'm wondering why?