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http://en.wikipedia.org/wiki/Aquila_chrysaetos.
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http://www.eagles.org.
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https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=5F8E7CA845BD413F&sec=lifehistory.
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Collopy, M. W. (1986).
Food consumption and growth energetics of nestling golden eagles.
Wilson Bulletin, 98:445--458.
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Cramp, S. and Simmons, K. E. L. (1977).
Hawks to bustards.
In Handbook of the Birds of Europe, the Middle East and North
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Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
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Prinzinger, R., A.Preßmar, and Schleucher, E. (1991).
Body temperature in birds.
Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.
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Rudeen, S. and Powers, L. R. (1978).
Body temperature of a nestling golden eagle.
Condor, 80:447--449.
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Stinson, C. H., Byrd, M. A., and Bean, G. (1976).
Osprey incubation temperatures: studies with a telemetering egg.
Raptor Research, 10:90--91.
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Sumner Jr., E. L. (1929).
Notes on the growth and behavior of young golden eagles.
Auk, 46:161--169.