"Subspeciation in Kansas pygmy bluebirds" is a study by leading biologists E. Raymond Hall and Bernardo Vija-Ramirez. In this book, published in the Framingham journal "Kansas University", the authors study in detail the phenomenon of subspeciation among pygmy bluebirds inhabiting the territory of the state of Kansas. Using a wide range of research methods and analysis of genetic data, Hall and Villa-Ramirez draw conclusions about the features of evolutionary processes in these small rodents. They describe in detail the internal species, their adaptation to changing environmental conditions and the interaction between them. Subspeciation in Kansas Pygmy Bluebirds is essential reading for anyone interested in evolutionary biology, zoology, and species studies. It helps reveal and understand the complexity of biodiversity and the dynamics of species groups in natural ecosystems."