The evolution of social behavior and nest architecture in sweat bees of the subgenus Evylaeus (Hymenoptera : Halictidae): a phylogenetic approach Laurence Packer OriginalPaper Pages: 153 - 160
The monogamous mating system of Peromyscus californicus as revealed by DNA fingerprinting David O. Ribble OriginalPaper Pages: 161 - 166
Deceptive behavior in pied flycatchers William A. SearcyDag ErikssonArne Lundberg OriginalPaper Pages: 167 - 175
Experimentally induced polygyny in a monogamous bird species: prothonotary warblers and the polygyny threshold Lisa J. Petit OriginalPaper Pages: 177 - 187
Hunger and food allocation among nestlings of facultatively siblicidal ospreys L. Scott Forbes OriginalPaper Pages: 189 - 195
Killer whale predation on marine mammals at Punta Norte, Argentina; food sharing, provisioning and foraging strategy A. Rus Hoelzel OriginalPaper Pages: 197 - 204
Sequential female choice and the previous male effect in sticklebacks Theo C. M. BakkerManfred Milinski OriginalPaper Pages: 205 - 210
Recognition of individual neighbors by song in the song sparrow, a species with song repertoires Philip K. StoddardMichael D. BeecherS. Elizabeth Campbell OriginalPaper Pages: 211 - 215
Changes in herd stallions among feral horse bands and the absence of forced copulation and induced abortion J. F. KirkpatrickJ. W. Turner Jr. OriginalPaper Pages: 217 - 219
Flight speeds observed with radar, a correction: slow “birds” are insects Ronald P. Larkin OriginalPaper Pages: 221 - 224
Mate choice in the willow warbler — a field experiment Björn L. ArvidssonRaimo Neergaard OriginalPaper Pages: 225 - 229