We got a call from a factory owner downtown, who had birds in the rafters of their factory floor, which they "wanted removed". We explained to them that we don't really do that, and put them in touch with animal control. A few hours later, we get a call from an employee at the same factory, saying they had a series of injured, oil-covered birds that needed help. Apparently, the man we had spoken too didn't have the patience to call animal control, and decided to chase them off by spraying an industrial hose at them. I don't know the details, but somehow the birds were severely injured, and had been coated in grease. By the time they reached us, only one of the birds was still alive. Thankfully, he wasn't severely injured. We did our best to clean him up, and named him Charles.
We identified Charles as a Fancy Pidgeon, bred for appearances and racing. In fact, he had most likely been a racing bird seeking shelter in the factory, given the condition of his muscles, and the damaged plastic band on his leg. If the band had been intact, we would have been able to track down his owner and return the bird, but his ordeal had made it almost completely illegible. We continued to clean him up with Dawn Dish Soap (it really is good at breaking up grease!), force-feeding him (he didn't want to eat at first), keeping him company with a mirror (they like the company of other pidgeons, which we didn't have), and treating him with some antibiotics. Our director meanwhile started contacting people she knew in the Pidgeon Racing world, trying to track down the owner of the bird. He could have come from any state in the Midwest, or possibly even farther.
Epilogue: Though Charles cleaned up good, we were never able to find his owner. Releasing a domestic pidgeon into the wild would be a death sentence. Our director found a local man who raised pidgeons, and was interested in taking him in as a pet and possibly a racing bird, if he had the chops and training for it. Charles got himself a new leg band, and went home with him.