During the years following acquisition of the site, the documentation of breeding birds was incidental to research conducted by myself and students. With the initiation of an NSF-supported Long-term Ecological Research program on Konza Prairie in 1980, a more systematic effort was undertaken to identify the breeding species in order to provide a baseline reference for future research. Evidence used to substantiate breeding for this study was either the finding of an active nest of a species or the observation of recently fledged young attended by adult birds. Key words: Green-backed heron (Butroides striatus), Wood duck (Aix sponsa), Northern Harrier (Circus cyaneus), Red-tailed hawk (Buteo jamaicensis), American kestrel (Falco sparverius), Ring-necked pheasant (Phasianus colchicus), Greater prairie-chicken (Tympanuchus cupido), Northern bobwhite (Colinus virginianus), Killdeer (Charadrius vociferus), Upland sandpiper (Bartramia longicauda), American woodcock (Scolopax minor), Rock dove (Columba liva), Mourning dove (Zenaida macroura), Black-billed cuckoo (Coccyzus erthythropthalmus), Yellow-billed cuckoo (Coccyzus americana), Great horned owl (Bubo virginianus), Common nighthawk (Chrodeiles minor), Common poorwill (Phalaenoptilus nuttallii), Chimney swift (Chaetura pelagica), Belted kingfisher (Megaceryle alcyon), Red- headed woodpecker (Melanerpes erythrocephalus), Red-bellied woodpecker (Melanerpes carolinus), Northern flicker (Calaptes auratus), Downy woodpecker (Picoides pubescens), Ferruginous hawk (Buteo regalis), Black- chinned hummingbird (Archilochus alexandri), Violet-green swallow (Tachycineta thalassina), and Louisiana waterthrush (Seiurus motacilla)