@Misc{Wiki,
 howpublished = {\url{http://en.wikipedia.org/wiki/Elanus_caeruleus}}
} 

@Book{Kooy2010,
 author = {Kooijman, S.A.L.M.},
 year = {2010},
 title  = {Dynamic Energy Budget theory for metabolic organisation},
 publisher = {Cambridge Univ. Press, Cambridge},
 pages = {Table 4.2 (page 150), 8.1 (page 300)},
 howpublished = {\url{../../../bib/Kooy2010.html}}
} 

@phdthesis{Mend1981,
 author = {John Martin Mendelsohn},
 year = {1981},
 title = {A study of the blackshouldered kite \emph{Elanus caeruleus}},
 school = {Univ of Natal}
} 

@Misc{avibase,
 howpublished = {\url{https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=97C47F3E1BA4129A&sec=lifehistory}}
} 

@Misc{KempKirw2020,
 doi = {10.2173/bow.bkskit1.01},
 author = {Kemp, A. C. and G. M. Kirwan and J. S. Marks and A. Motis and E. F. J. Garcia},
 year = {2020},
 title = {Black-winged Kite (\emph{Elanus caeruleus}), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA}
} 

@Article{PrinPres1991,
 doi = {10.1016/0300-9629(91)90122-S},
 author = {R. Prinzinger and A.Pre{\ss}mar and E. Schleucher},
 year = {1991},
 title = {Body temperature in birds},
 journal = {Comp. Biochem. Physiol.},
 volume = {99A(4)},
 pages = {499-506}
}