Relatively little is known about Ixobrychus exilis (Least Bittern) nesting sites. We searched for Least Bittern nests on Reelfoot Lake and nearby Black Bayou Waterfowl Refuge, TN, May–July 2003. We located 8 nests at Reelfoot Lake, where Decodon verticillatus (swamp loosestrife) dominated emergent communities. We also discovered 2 nests at Black Bayou, where Zizaniopsis miliacea (giant cutgrass) dominated emergent communities. D. verticillatus was the dominant plant species within 60 m of most nests. Z. miliacea dominated within 5 m of most nests, and most nests were made of Z. miliacea. We found a nest with 2 white-colored chicks and 2 ochre-colored chicks, which may be the first such instance reported.