Akaike Information Criterion (AIC) best-fit model results for ten a priori models of domestic poultry and wild bird H5N1 outbreaks during 2003–2009 (n = 7 domestic, n = 9 wild) compared with random points drawn from minimum convex polygons per season (n = 70 domestic, n = 90 wild) on the Qinghai-Ti

aCovariates for poultry model were bar-headed goose utilization distributions (BHGO UD), poultry density (PD), latitude (Lat), and cropland (Crop). bCovariates for wild bird models were BHGO UD, PD, Lat, grassland (Gras), and wetlands (Wetl). K = number of model parameters, ΔAIC = AIC differences, wi = Akaike weights.