They do like to be warmer, but 60-70 degrees iw plenty warm enough. A heat lamp will definitely be to hot. I would take that out, she'll be just fine without it.
Glad I can help! :)
I bet she was so happy! Honestly, she probably doesn't need a that lamp. Especially since its staring to get nice, but we live in completely different areas, so maybe the temp is colder were you are. What is the temp right now?
Some girls just have a hard time. I have a 7 year old who's beak I have to trim. She's much older then your lady though.
For eggs, you also mentioned that she has been in the dark. Less then 8 hours of sunlight a day will cause hens to stop laying.
If she isn't putting weight on it, it could be a sprain or something she did to it. Are you sure it was the Tylan or the isolation that brought the heat down? Like said above, giving antibiotics for a short period of time isn't going to do anything. You need to do a full cycle, so I think that...
Most of the time you don't. My hens nails don't need to be trimmed, but some hens nails just get long. Usually a chickens scratching behavior in the dirt allows them to file the nail and keep them short, but some times older hens, (3 really isn't that old, but every hen is different) have a...
I'm not sure about that swelling at the top of her leg though. I'll tag some experts and see what they say, but maybe its the result of a possible sprain? Is that area warm to the touch? @Eggcessive @Wyorp Rock @azygous what are you thinking?
First thing I noticed is those toenails. Those are long! I can't imagine she could walk comfortably on those! I would suggest clipping them with dog nail clippers, or person nail clippers will work as well. Clip them until they are a little longer then this-
Then, use a nail file to file them...