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

@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}}
} 

@Article{FranGilb1981,
 author = {Frank, S. and Gilbert, S. and Tomassoni, P.},
 year = {1981},
 doi = {10.1111/j.1748-1090.1981.tb01958.x},
 title = {Rearing Ruddy ducks at the {N}ational {Z}oological {P}ark, {W}ashington, {D}.{C}.},
 journal = {Int. Zoo Yb.},
 volume = {21},
 number = {1},
 pages = {97-101}
} 

@Misc{AnAge,
 howpublished = {\url{http://genomics.senescence.info/species/entry.php?species=Oxyura_jamaicensis}}
} 

@Misc{EoL,
 howpublished = {\url{http://eol.org/pages/1048999/details}}
} 

@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}
}