Being from the midwest I have only gotten to Bowhunt Javies one time & hoping again this March. I have been Bowhunting for 53 years though & taken many a Biggame animal.
I do know they have poor eye sight & can be stalked & come into feeders IF that is allowed in your state. They also respond to a predetor call but be ready for them to come running in & mad (could be scary for you). They have excellent NOSe so always pay attention to wind direction & there is nothing wrong with their hearing.
My shots were like 20 yds or less & I was hunting a feeder (Texas). Everything I encountered was small groups of 5 to 10.
Good Luck & enjoy.