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E. C. Jaeger. (1949). Further observations on the hibernation of the Poor-will // Condor. 51. P. 105–109.

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J. D. Ligon. (1970). Still more responses of the Poor-will to low temperature // Condor. 72. P. 496–498.

C. P. Lyman, J. S. Willis, A. Malan and L. C. H. Wang. (1982). Hibernation and Torpor in Mammals and Birds. New York and London: Academic Press.

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C. M. Perrins. (1976). British Tits. Glasgow: Collins & Co.

T. D. Pitts. (1976). Fall and winter roosting habits of Carolina chickadees // Wilson Bull. 88. P. 603–610.

R. E. Reinertsen and S. Haftorn. (1986). Different metabolic strategies of northern birds for nocturnal survival // J. Comp. Physiol. B. 156. P. 655–663.

R. E. Reinertsen, S. Haftorn and R. Thaler. (1988). Is hypothermia necessary for winter survival of the Goldcrest, Regulus regulus? // J. Ornithol. 129. P. 433–437.

J. D. Rising and J. W. Hudson. (1974). Seasonal variation in the metabolism and thyroid activity of the Black-capped chickadee (Parus atricapillus) // Condor. 76. P. 198–203.

S. M. Smith. (1991). The Black-capped Chickadee: Behavioral Ecology and Natural History. Ithaca, N. Y.: Cornell University Press.

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F. D. Vogt and B. Heinrich. (1983). Thoracic temperature variations in the onset of flight in dragonflies (Odonata: Anisoptera) // Physiol. Zool. 56. P. 236–241.

G. E. Walsberg. (1990). Communal roosting in a very small bird: Consequences for the thermal and respiratory gas environments // Condor. 92. P. 795–798.

M. C. Webster. (1999). Verdin (Auriparus flaviceps) // A. Poole and F. Gill (eds.). The Birds of North America. No. 470. Philadelphia: The Birds of North America.

P. C. Withers. (1977). Respiration, metabolism, and heat exchange of euthermic and torpid poorwills and hummingbirds // Physiol. Zool. 50. P. 43–52.

L. L. Wolf and F. R. Hainsworth. (1972). Environmental influence on regulated body temperature in torpid hummingbirds // Comp. Biochem. Physiol. 41A. P. 167–173.

Зонов Г. Б. (1967). О зимних ночевках синиц в Предбайкалье // Орнитология. 1967. 8. С. 351–354. (Цит. по: S. M. Smith. The Black-capped Chickadee: Behavioral Ecology and Natural History. Ithaca, N. Y.: Cornell University Press, 1991.)

11. Черепахи в оцепенении подо льдом

D. A. Belkin. (1968). Aquatic respiration and underwater survival of two freshwater turtle species // Respir. Physiol. 4. P. 1–14.

G. P. Brown and R. J. Brooks. (1994). Characteristics and fidelity to hibernarcula in a northern population of snapping turtles, Chelydra serpentina // Copeia. P. 222–226.

C. E. Crocker, T. E. Graham, G. R. Ultsch and D. C. Jackson. (2000). Physiology of common map turtles (Graptemys geographica) hibernating in the Lamoille River, Vermont // J. Exp. Zool. 286. P. 143–148.

R. E. Gatten. (1981). Anaerobic metabolism in freely diving painted turtles (Chrysemys picta) // J. Exp. Biol. 212. P. 377–385.

T. E. Graham and A. A. Graham. (1992). Metabolism and behavior of wintering common map turtles, Graptemys geographica, in Vermont // Canadian Field Naturalist. 106. P. 517–519.

_, C. B. Graham, C. E. Crocker and G. R. Ultsch. (2000). Dispersal from and fidelity to a hibernaculum in a northern Vermont population of common map turtles, Graptemys geographica // Canadian Field Naturalist. 2000. 114. P. 405–408.

C. V. Herbert and D. C. Jackson. (1985). Temperature effects on the responses to prolonged submergence in the turtle Chrysemys picta bellii. I. Blood acid-base and ionic changes during and following anoxic submergences // Physiol. Zool. 58. P. 655–669.

D. C. Jackson. (1968). Metabolic depression and oxygen depletion in the diving turtle // J. Appl. Physiol. 24. P. 503–509.

_ and G. R. Ultsch. (1982). Long-term submergence at 3 °C of the turtle, Chrysemys picta bellii, in normoxic and severely hypoxic water. II. Extracellular ionic responses to extreme lactic acidosis // J. Exp. Biol. 96. P. 29–43.

T. G. Pluto and E. D. Bellis. (1988). Seasonal and annual movements of riverine map turtles, Graptemys geographica // J. Herpet. 22. P. 152–158.

G. R. Ultsch. (1985). The viability of nearctic freshwater turtles submerged in anoxia and normoxia at 3 and 10 °C // Comp. Biochem. Physiol. 81(3). P. 607–611.

_. (1988). Blood gases, hematocrit, plasma ion concentrations, and acid-base status of musk turtles (Sternotherus odoratus) during simulated hibernation // Physiol. Zool. 61(1). P. 78–94.

G. R. Ultsch and D. C. Jackson. (1982). Long-term submergence at 3 °C of the turtle, Chrysemys picta bellii, in normoxic and severely hypoxic water. I. Survival, gas exchange and acid-base status // J. Exp. Biol. 96. P. 11–18.

G. R. Ultsch and D. Lee. (1983). Radiometric observations of wintering snapping turtles (Chelydra serpentina) in Rhode Island // J. Alabama Acad. Sci. 54(4). P. 200–206.