Rachel...check this site out. You may notice more symptoms after reviewing it.
http://www.chevita.com/en/pigeons/symptoms/index.php
You need to hand feed the bird if it isn't eating enough on it's own. The bright green poop can be an indication of starvation which would fit if this bird has been on it's own and unable to find food.
It would be helpful if you could post the band numbers and letterers as we may be able to help you track the owners.
Do you have the capabilities of doing a fecal float at your rehab facility. That could be a very good thing to do for this bird.
I would start the bird on clavamox if it were in my care.
http://www.chevita.com/en/pigeons/symptoms/index.php
You need to hand feed the bird if it isn't eating enough on it's own. The bright green poop can be an indication of starvation which would fit if this bird has been on it's own and unable to find food.
It would be helpful if you could post the band numbers and letterers as we may be able to help you track the owners.
Do you have the capabilities of doing a fecal float at your rehab facility. That could be a very good thing to do for this bird.
I would start the bird on clavamox if it were in my care.