He's less aggressive than the others and is smaller than the rest and sleeps more too(I think that means he's weak) . I will send a picture of his butt in a few minutes after I separate himDoes the duckling appear to be acting normal, eating, drinking, producing normal colored poops? Pictures of the area?
I would first attempt to determine if the blood was caused by an external laceration, as if not, the problem could be related to something internally, like Coccidiosis, or a bacterial infection like necrotic enteritis, both of which can cause bloody droppings.
Examine the area, then try to clean it off with a damp towel, avoiding getting the down too wet as that may cause chilling. If lacerations are noted, the duckling should be put in a pen where it can see the others, but can't touch, or the bully bird needs to be identified and separated using the same technique.
Now that I started to try and clean it it looks like maybe his vent came out because it's not musucy it's like squishyHe's less aggressive than the others and is smaller than the rest and sleeps more too(I think that means he's weak) . I will send a picture of his butt in a few minutes after I separate him
His vent went back in and his personality is more vibrant but I did some further research on it and I guess it's very likely it'll happen again in the future. So this will be the only duckling I'm going to keep out of the babies