Yes very true maternal instict will bring does to a fawn in distress call. Just blow a fawn distress call and blew it lots, they cry like a baby when they are lost or in trouble. The hardest part is picking a spot to setup and also be aware that the does you call in are on the highest of alert, they expect to find a predator or a deer in troubles so they come in very attentive and on edge.

I think I saw an episode on a primos video once where some young kids were blowing on a fawn distress call like it was a gazoo and hauled in a few does. Just an example that it can be done.