"Most Mississippi biologists consider blueberries low preference browse for white-tailed deer. In addition, a 1972 study of biologists across the Southeast gave blueberries a low preference rating. However, exceptions to this low opinion do exist. In Forest Plants of the Southeast, Miller and Miller rate deer preference for blueberry as moderate. Biologists monitoring use of blueberries in the Lower Coastal Plain and the Coastal Flatwoods observe moderate utilization of plant forage and therefore rate the plant as preferred or important. As a rule, most biologists see no utilization of blueberries during the growing season. If deer browsing occurs, it seems to be limited exclusively to the winter months.
Warren and Hurst in an east-central Mississippi study rated blueberries high when only use of the forage or leaves was considered. Interestingly, and possibly related to Warren and HurstÃ¢â‚¬â„¢s findings, Mississippi biologists note moderate blueberry use outside the Lower Coastal Plain and the Coastal Flatwoods when preferred browse is not readily available.
It is well documented that deer feed on less preferred plant species when population levels are in excess of environmental carrying capacity and the presence of preferred plant species is minimal. Spencer and Castle made this same observation examining browse pressure on Red Creek WMA in the Lower Coastal Plain. At the time Red Creek WMA supported a moderate deer population and utilization of blueberries was heavy.
In summary, some plants are fed on by deer in all soils and at all population levels. Other plants seem to never be utilized by deer in any conditions. Then there are plants like blueberries, whose utilization is governed by site specific conditions. Utilization of plants of this type is very difficult to predict. "
So...maybe? From what else I read it seems like the bushes themselves are the target of hunger and need to be watched in winter and poultry netting should be used to keep the birds and everything else with taste buds away while fruiting.