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

@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{Brow2008,
 author = {Brown, C. R.},
 doi = {10.1111/j.1474-919x.1988.tb02718.x},
 year = {2008},
 title = {Energy requirements for growth of {S}alvin's Prions \emph{Pachyptila vittata salvini},
 Blue Petrels \emph{Halobaena caerulea} and Great-winged Petrels \emph{Pterodroma macroptera}},
 journal = {Ibis},
 volume = {130},
 number = {6},
 pages = {527-534}
} 

@Misc{avibase,
 howpublished = {\url{https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=93860B9B0F951405&sec=lifehistory}}
}