Citation: Rl. Robinette et Jc. Ha, Social and ecological factors influencing vigilance by northwestern crows,Corvus caurinus, ANIM BEHAV, 62, 2001, pp. 447-452
Citation: Jc. Ha et al., Demographic analysis of the Washington Regional Primate Research Center pigtailed macaque colony, 1967-1996, AM J PRIMAT, 52(4), 2000, pp. 187-198
Citation: Jc. Ha et al., Survival and reproduction in the first two years following a large-scale primate colony move and social reorganization, AM J PRIMAT, 50(2), 2000, pp. 131-138