Bird . | Day . | Body mass (g) . | Measured (mg day−1) . | Expected (mg day−1)* . | Measured/expected . |
---|---|---|---|---|---|
Grackle | |||||
MNR | 1 | 115 | 24.7 | 85.5 | 0.29 |
3 | 117 | 13.8 | 0.16 | ||
TENL | 1 | 19.9 | 53.7 | 0.37 | |
3 | 11 | 0.21 | |||
Bulbul | |||||
MNR | 1 | 37 | 8.16 | 36.1 | 0.23 |
3 | 35 | 4.3 | 0.12 | ||
TENL | 1 | 6.2 | 22.7 | 0.27 | |
3 | 3.7 | 0.16 |
Bird . | Day . | Body mass (g) . | Measured (mg day−1) . | Expected (mg day−1)* . | Measured/expected . |
---|---|---|---|---|---|
Grackle | |||||
MNR | 1 | 115 | 24.7 | 85.5 | 0.29 |
3 | 117 | 13.8 | 0.16 | ||
TENL | 1 | 19.9 | 53.7 | 0.37 | |
3 | 11 | 0.21 | |||
Bulbul | |||||
MNR | 1 | 37 | 8.16 | 36.1 | 0.23 |
3 | 35 | 4.3 | 0.12 | ||
TENL | 1 | 6.2 | 22.7 | 0.27 | |
3 | 3.7 | 0.16 |
MNR, minimal nitrogen requirements; TENL, total endogenous nitrogen loss.
N=20 (yellow-vented bulbuls); N=18 (Tristram's grackles).
Calculated from the allometric equations of Robbins(1993).