She was hanging upside down by her leg for more than 2 hours.

6/6/2010 - See Update at the bottom of this post, and more recent updates in the comments.
I was sure she was dead.... eyes closed, she looked so very dead.  

It was a bit later than usual when I went out to close up the Chickens, in the thunder, lightning, and pouring rain. Everyone was there except for my sweet Velcro Pigeon. She would never stay out on purpose so I feared the worst. This is my prize pigeon, my friend, my companion, my treasure…we’ve been thru a lot together... she has nine lives it seems (she's used up 4).  With flashlight I looked everywhere, several times, no sign of her. I was about to give up and hoped she might return the next morning. Then, for no good reason, I shined the light at the top vent in back of the aviary and to my amazement, there she was, hanging upside down by her leg, looking so very very dead, I was sure she was dead.
I grabbed a ladder and with the light in one hand and rain pouring down… then I saw her blink so I knew she had a chance to live but a short time longer and she would have died. I lifted her body and was attempting to free her foot when the ladder started to sink and tip over in the wet soil. I was afraid if I dropped her, her leg would twist and break. The hole was small and I could not reach past her to free her leg. The ladder kept tilting further so I quickly pushed her back into the vent without freeing her leg and hoped for the best. Success, when she fell inside (just a 4" drop to the nest roof) her leg was freed.
I ran inside and she was laying on the nest roof, exhausted and not moving. Her leg did not appear to be broken but she was nearly unconscious. I held her in my arms on the couch and she promptly fell sound asleep. I held her for hours, hoping she’d survive.

WHY? Did she go out the vent ? It seemed strange, she never had before and the door was wide open anyway. But the next night, our Tuna cat desperately wanted to go outside, so we let him. It was because there was a neighborhood cat returned to the scene of the crime. Tuna promptly chased him away. Tuna pays no attention to the pigeons, chickens, or Doves, ignores them, but doesn’t like stray cats.
The next morning Velcro’s leg was swollen and getting worse so I took her to the vet. The Vet said she would likely lose her leg, it was limp and no sensation. But she gave Velcro an exam and an x-ray. There were no fractures so then the vet said there was a 75% chance of losing her leg. By then I was so upset, the vet hugged me to comfort me. 

The next day Velcro showed signs of being able to control her leg a bit, but not her toes (dangling) so there was a bit of hope. When she walked she’d fall on her face. By that evening she was able to use her leg just a little bit for support and could limp with difficulty. By the third day her leg had much improved and she seemed to be able to control her front toes just a bit. By evening, she could sorta walk but with a very severe limp, no pressure on her toes and foot. While recovering, she spent many hours sleeping in my arms.

Her life partner, 2.5 the Homer pigeon, was so very upset, frantic, and desperate to see Velcro… didn’t know what to do, cooing loudly and pacing. She seemed to know that Velcro was in trouble. When I put Velcro’s cage on the deck, 2.5 immediately flew up from the aviary to be with Velcro. Later I put Velcro in the house and before I could close the door, 2.5 had flown in to be near Velcro. The bond between those 2 birds is so amazing, so complete…. They truly love each other so very much.

The forth day Velcro was doing so much better I decided she could be free inside the aviary to be with her lover 2.5. For the entire day, they hugged and kissed and coo’ed and coo’ed.   

The 5^th day she still limped badly, but it seemed she would be able to be free and lead a mostly normal life so I let them both outside. It was a pleasure to see their happiness. They were jubilant to be together again, much hugging and kissing. They flew around the neighborhood so happy to be reunited and free to fly. Velcro was still limping but otherwise seemed in pretty good shape.
This is such a sweet video.
 
BUT THEN late in the day, I noticed the large pool of blood. Velcro was laying on the aviary platform instead of up high by the nest. She seemed to be bleeding to death and hadn’t the strength to get up to the nest. She was covered in blood and I couldn’t tell where it was coming from. I finally discovered that she had NO control of her back toe and had been walking with her toe folded under her foot all day and the knuckle was bleeding badly. I cleaned her up some and got the bleeding to stop. . We taped a cotton ball on her foot to restrict movement and protect the wound. Afraid it may start bleeding again, I held her in my arms for many hours again and she slept. I was hoping she hadn’t lost too much blood, and that it wasn’t too late.
The next morning we made a splint… a cast… of styrofoam and gauze patches, to keep all her toes in place.



Still covered in dried blood.

I’m hoping that when we remove it tomorrow (Fri) that her back toe stays in the right position… then maybe… a day in the aviary and if that’s successful, then Saturday she and 2.5 can be free to fly together again. I’m hoping.
 
 = = = = = = =    UPDATE 6/4/10 9:30pm. The day started out great. Removed the splint and Velcro was in good spirits and walking pretty good with all her toes where they should be. I let her loose in the aviary and watched her close for many hours and it looked very promising. Her back toe was always straight behind her... all day long. She doesn't have perfect control of her leg yet so stumbles occasionally but overall, doing quite nicely.
BUT by evening, she was walking with her back toe under her foot again so we immediately put the splint back on and confined her to a cage. Will check again in a few days, but I fear it means she cannot control it at all? ? ? then her back toe may have to be amputated ???
...Another potential problem. Her leg is still quite swollen and feels hot to the touch, she gets daily medication for it.  I was hoping it would be normal by now. Also her digestive system is not right. Pigeon droppings should contain no liquid, but hers does, quite a lot. That means all is not well, but maybe that's to be expected under the circumstances... lots of stress. Otherwise, she seems healthy, alert and happy.
UPDATE 6/11/2010 12 noon, Doing well except that she still has almost no control of her toes. The problem is that her rear toe folds under her foot then she walks on it and it bleeds. The splint prevents that but if she's to get control back, her toes need exercise. I'm taking her back to the vet this afternoon for some advice and more pain medication. I'm still keeping her confined in my office. She just now managed to land on my arm.
GOOD NEWS update 7/9/2010 - Success, looks like she'll be ok. 
More Good news update 5/1/2012 - She's fully functional, back to normal.
Terrible news 5/20/2014. Today a hawk killed her as she was flying to the deck to visit me. http://bertthemensachicken.blogspot.com/2014/09/this-is-not-sunset-picture.html