1. Altmann, J., Observational study of behavior: sampling methods, Behaviour, 1974, vol. 49, no. 3, pp. 227–267.
2. Amaral, M.J., A comparative breeding biology of the Tufted and Horned puffin in the Barren Islands, Alaska, Master’s Thesis, Seattle: University of Washington, 1977.
3. Andreev, A.V., Golubova, E.V., Zubakin, V.A., and Kharitonov, S.P., The number of seabirds in the colonies of Talan Island: a twenty-year trend, Vestn. Severo-Vost. Nauchn. Tsentra Dal’nevost. Otd. Ross. Akad. Nauk, 2010, no. 2, pp. 30–42.
4. Bakhturina, D.S. and Klenova, A.K., Quantitative analysis of the behavior of three auk species (Charadriiformes, Alcidae): crested auklet (Aethia cristatella), parakeet auklet (Cyclorrhynchus psittacula), and horned puffin (Fratercula corniculata), Biol. Bull. (Moscow), 2016, vol. 43, no. 7, pp. 670–684.
5. Bedard, J., The nesting of the crested, least and parakeet auklets on St. Lawrence Island, Alaska, Condor, 1969, vol. 71, pp. 386–398.