1. Kuchin, A.P, Centennial and seasonal dynamics of Altai nature, Sib. Ekol. Zh, 1996, vol. 3, no. 2, pp. 179–181.
2. Sokolov, L.V., Tropp, E.A., Morozov, Yu.G., and Efremov, V.D, Effect of the temperature factor on the long-term fluctuations of the timing of migration, breeding, and dispersal of passerine birds, Dokl. Biol. Sci., 2001, vol. 379, pp. 362–365.
3. Amosov, P.N., Bragin, A.V., and Dobrynin, D.A, Effect of climate change on the bird fauna of northern European Russia, Izv. Ross. Akad. Nauk, Ser. Geogr., 2006, no. 5, pp. 30–35.
4. Vengerov, P.D, Effect of climate change on the timing of arrival and breeding of the Song Thrush (Turdus philomelos) and Chaffinch (Fringilla coelebs) in the Voronezh Nature Reserve, Usp. Sovrem. Biol., 2011, vol. 131, no. 4, pp. 416–424.
5. Vengerov, P.D., Specific features in the breeding timing of the Chaffinch (Fringilla coelebs) and Pied Flycatcher (Ficedula hypoleuca) under conditions of high spring temperatures, Nauch. Vedomosti Belgorod. Gos. Univ., Ser. Estestv. Nauki, 2014, vol. 17 (188), no. 28, pp. 76–81.