Agreed, as cafarmgirl says.
Alfalfa, as a hay, will most often be a bunch of flake that falls
to the bottom & is the richest part, & the stem will be a
separate & coarse piece.
The birds will almost always eat on the powdery green or flakey
parts, which is the most nutritious and more easily...
It has been suggested on this site to give alfalfa to hens
for the calcium.
My flock will go to the alfalfa to get their green fix during the winter.
They live still.....