A.C. Kamil, On the Proper Definition of Cognitive Ethology.
R.P. Balda and A.C. Kamil, Ecology and Evolution of Spatial Memory in Corvids of the Southwestern U.S.: The Perplexing Pinyon Jay.
S.J. Shettleworth and R.R. Hampton, Adaptive Specialization of Spatial Cognition in Food Storing Birds?
Approaches to Testing a Comparative Hypothesis.
N.C. Clayton and D.W. Lee, Memory and the Hippocampus in Food-Storing Birds.
F.C. Dyer, Spatial Cognition: Lesson from Central-Place Foraging Insects.
W. Wiltschko and R. Wiltschko, The Navigation System in Birds and Its Development.
V.P. Bingman, L.V. Riters, R. Strasser, and A. Gagliardo, Neuroethology of Avian Navigation.
W.J. Smith, Cognitive Implication of an Information-Sharing Model of Animal Communication.
L.F. Baptista, D.A. Nelson, and S.L.L. Gaunt, Cognitive Processes in Avian Vocal Acquisition.
D. Todt and H. Hultsch, Hierarchical Learning, Development, and Representation of Song.
D.E. Kroodsma and B.E. Byers, Songbird Song Repertoires: An Ethological Approach to Studying.
T.J. De Voogd and T. Székely, Causes of Avian Song: Using Neurobiology to Integrate Proximate and Ultimate Levels of Analysis.
I.M. Pepperberg, The African Grey Parrot: How Cognitive Processing Might Affect Allospecific Vocal Learning.
R.S. Wilcox and R.R. Jackson, Cognitive Abilities of Araneophagic Jumping Spiders.
C.G. Beer, Varying Views of Animal and Human Cognition.