What kind of fishing? Arkansas has trout streams, bass and catfish in reservoirs, some really big cats and other big predators in stretches of the Arkansas River. For some of the fishing you might need a boat, and a guide often helps.
www.arkansas.com/outdoors/fishing
I fish a little further up in the Arkansas sytem, the river and its tributaries through NE Oklahoma, because that's where my license is valid. But in the state of Arkansas, I'd be in the same waters, the flood control reservoirs for the Arkansas system.
White River is something special, something different, because it is fast water and stocked with trout. They also stock trout in the tailwaters of some of the dams, but fishing varies quite a bit depending on season and outflow.
September, you'll start seeing a lot of migratory waterfowl coming through, and some populations of geese, ducks, and wading birds winter in the area, also finding the fishing good. There will be a permanent waterfowl population as well, guys who forgot about going north for breeding. Bald eagles live around, fish in, some of the larger reservoirs.
www.arkansas.com/outdoors/birding/birds
You have to decide which birds you want to see, what's in the forests of the northwest is not the same as what you'll find on the Mississippi Flyway.
Tom Test
Itasca Spirit 29B