... & 200 -073 ! I by mass. For periods I-III see text. Bird Duration Duration of Initial Final of Fasting, Period II, Body Body yrrtiy ve;zIp &YS daY8 Mkyr Mky' Mass, 96 go kg-'. 24 il 105 18 10 12.28 8.97 27 12.3 106 156 140 13.73 3.52 74 7.1 107 138 97 11.96 4.22 65 6.7 ...