Agapornis personata fischeri

tags: researchblogging.org, evolutionary behavior, sociobiology, ornithology, birds, avian, evolution, William Dilger, Agapornis roseicollis, Agapornis fischeri, lovebirds Peach-faced lovebirds, Agapornis roseicollis (left) and Fischer's lovebirds, Agapornis fischeri (right), can interbreed to produce sterile offspring. Images: LoveBirds New Zealand. Is behavior genetically "programmed" or is it the result of learning? Or is it instead a little bit of both? This is the old "nature versus nurture" argument that has occupied behavioral and evolutionary scientists, psychologists and even…