ALEXANDRIA, La. (AP) — Meetings planned in four states will ask people what they think about using genetically modified crops on refuges to provide food for migrating waterfowl.

The U.S. Fish and Wildlife Service has been taking public comment since April for an environmental analysis required under a ruling in a lawsuit by three environmental groups. The groups contend biotech crops encourage overuse of herbicides and the growth of herbicide-resistant weeds, hurt beneficial insects and change soil ecology.