Urgent HELP

[indianbird]

Hello every body,
couple of my Female bird has some thing wrong with them This morning when i let all bird out of the loft these two female was not moving around much so they got my attantion i pick them up then they jumped up from my hand when they landed on my back yard they fell on there face there feet are backward can't walk I dont know whats wrong . any help I m worried
PLEASE HELP HELP