1. Observational study of behavior: sampling methods;Altmann;Behaviour,1974
2. Uninformative parameters and model selection using Akaike’s information criterion;Arnold;J. Wildl. Manag.,2010
3. Feral Horses in the Desert: Population Genetics, Demography, Mating, and Management. Thesis;Ashley,2000
4. Bartoń, K.A., 2020. Package 'MuMIn': Multi-Model Inference. R package version 1.43.17.
5. BLM, 2020. Wild Horse and Burro Program Data. 〈https://www.blm.gov/programs/wild-horse-and-burro/about-the-program/program-data〉 Accessed 21 July, 2021.