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

@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{EarlClar1991,
 author = {Earle, K. E. and Clarke, N. R.},
 year = {1991},
 title = {The Nutrition of the Budgerigar (\emph{Melopsittacus undulatus})},
 journal = {Journal of Nutrition},
 pages = {S186--S192}
} 

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

@Article{Buch1983,
 doi = {10.1086/physzool.56.3.30152612},
 author = {Bucher, T. L.},
 year = {1983},
 title = {Parrot Eggs, Embryos, and Nestlings: {P}atterns and Energetics of Growth and Development},
 journal = {Physiological Zoology},
 volume = {56(3)},
 pages = {465–483}
}