I am updating my article on the usefulness of the SDMA kidney test.
If your vet  has followed SDMA levels in your pet, perhaps you would 
share those values with me. RSH email
When the chick is too young to stand and is an altricial species of bird, this second technique needs to be used. It is not a good method for chicks of species that normally walk (precocial) as soon as they are born (hatch).