00545nam a22001697a 4500003000400000020001500004082001900019245011200038260004500150300001000195440004500205546001200250650005000262650002100312700001800333700002400351OSt  a0521215048  a598.25bPIN/GR  aGranivorous birds in ecosystems:btheir evolution, populations, energetics, adaptations, impact and control  aLondonbCambridge university pressc1977  a431p.  aInternational Biological ProgrammevV.12  aEnglish  aVariation and evolution in a granivorous bird  aAvian energetics  aPinowski, Jan  aKendiegh, S Charles