I have a 2 week old RIR. She is having a hard time pooping, she squawks and makes noise while going, you can see her struggling to push it out. The poo seems to stick out for a second before dropping off. She doesn't have pasty butt, but a bit of poo residue chalks up below her vent. About once a day she will have a "normal" poo that doesn't seem to cause her distress. She is smaller than my other chicks even though they hatched at the same time. I have tried to give her yogurt, but she wants nothing to do with it. Other than the difficulty pooping she seems to be fine, eats, drinks, is active. I am a newbie, and I am worried. Please if anyone knows what I can do for her or give her to help let me know. Thank you!!!