What about this ....and I understand completely.
Chick Cup or Chicken Basket for Trouble Standing and Walking
Used to treat birds recovering from Splayed Leg, a Slipped Achilles Tendon, a Broken Leg, or weak leg(s) and/or tipping over caused by various conditions.
This is a physical...
I'm so sorry . I'd keep on with the soaks though just try and keep her from putting much weight on her leg /foot the water time will help with that. Are you going to try a vet and get them to splint it?
Are you limiting her activity? mainly swim time? just like us when we have an injury we should be up using the leg so much but water therapy is great because it keep weight off the leg but gives her a chance to keep the muscles moving.
She maybe over working it running around with the others, is there anyway you can separate the brooder so she can still be with her buds but not be so rambunctious and that way maybe they could share the lamp, and still get into the tub all together.
mix the ES and some nice warm water take a small cloth and let it soak in the solutions wring out to moist but not dripping and wrap it around the leg hold in place for as long as it stays warm you can do it as often as you like and I'd massage the tendon like Clint says to see if you can feel...
Could it just be an injury from falling off the sofa? I'd go with what Amiga is recc. warm ES soaks or compresses [no drinking the water] and the Traumeel or some other kind of herbal to help with healing and bring down inflammation.
I just found this and am following and not adding to it since I haven't a clue, but Clint what does churck the tendon mean? I hope you can help the little one nayeli.