It' s defiantely poor timing but at least it will put money in your pocket ! Maybe you will lose some hunting time this season but look ahead to next. By that time you' ll have been there a year and probably have some vacation time available to take a week or so off and go hunting.

By chance did you mention this to the person doing the interview ? I know in some cases they will change your start date if you have pre-arranged plans such as a vacation.