canker on side of beak

Hello, I have another feral pigeon, and this one has a deformed beak. Could it be canker or pigeon pox? He didn't pooped yet and I don't want to force his beak open to take a better look because he's very stressed and I don't want to give him a heart attack.

Hi there, I have had a young pigeon for 6 days, he was tangled in anti pigeon netting under a bridge for at least 3 days, eventually i managed to nag my other half into getting a ladder and cutting the poor thing down (it was around 6 m high, so hubby grumbled a lot) the poor thing was very...