1. The biology of the jungle babbler;Andrews;Pavo,1970
2. Flocking associates of the piñon jay;Balda;Wilson Bull,1972
3. Vocal communication in the Florida scrub jay;Barbour,1977
4. Life histories of North American jays, crows and titmice;Bent;U.S. natn. Mus. Bull,1946
5. Vigilance and group size in ostriches;Bertram;Anim. Behav,1980