Parakeet health issue
Recently, my mom noticed that one of our parakeets has a huge clump of poop stuck to his rear end. It is slightly greenish and black. My mom think it's another internal exposure and that there may not be any help for him considering that the vet said that one of our other parakeets had to be put down. Somehow I just think it's a minor situation, and can be cured. What do you all think it is? Plus he doesn't move around very often in his cage ever since he was diagnosed with the issue.