Notes on Behaviors of Free-Ranging Black-Footed Ferrets: Conata Basin, South Dakota, 2007–2009

. During 2007–2009 in the Conata Basin, South Dakota, field studies provided opportunities to accumulate incidental observations of wild-born black-footed ferrets (Mustela nigripes) and their interactions with other species. Here, I describe maternal behaviors by female ferrets; interactions between a female ferret and a rattlesnake (Crotalus viridis viridis); and attacks by ferrets on a horned lark (Eremophila alpestris), a deer mouse (Peromyscus sp.), and a cottontail rabbit (Sylvilagus sp.). Additionally, I present hypotheses for future testing and discuss conservation implications.