1. A study of bird song.;Armstrong,1963
2. Song dialects and genetic differences in white-crowned sparrows (Zonotrichia leucophrys);Baker;Evolution,1975
3. Song dialects as barriers to dispersal in white-crowned sparrows, Zonotrichia leucophrys nuttalli;Baker;Evolution,1978
4. Song dialects and demes in sedentary populations of the white-crowned sparrow (Zonotrichia leucophrys nuttalli);Baptista;University of California Publications in Zoölogy,1975
5. Territorial, courtship and duet songs of the Cuban grassquit (Tiaris canora);Baptista;Journal für Ornithologie,1978