The warmer the water gets, the better the bowfishing is for the silvers and bigheads. But the grass carp wll begin to feed in the creeks and rivers as soon as april or may. When the keys are dropping off the maples in the Vermillion you can bet big grass carp will be near the surface suckin them in. Buffalo and carp can be found from march on in the large mud flats and backwaters. The thing to remember early in the year is to look for very big shallow areas. You can find carp there. but not many on a smaller flat where there is drop offs near by.
Send me your email awhfy.....Ill put you on the free E-Newsletter list. Are you going to be bowfishing out of a boat or by shore?