- [Wiki]
http://en.wikipedia.org/wiki/Caprimulgus_europaeus.
- [avibase]
https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=80D4B0FE7FF1D735&sec=lifehistory.
- [BerrBibb1981]
Berry, R. and Bibby, C. J. (1981).
A breeding study of nightjars.
Britisg Birds, 74(4):161--169.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.
- [PrinPres1991]
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.