| air2ground | Compute groundspeed | 
| altitude2density | Compute density in International Standard Atmopshere | 
| amplitude | Flapping flight optimal amplitude | 
| Bird | Bird description | 
| Bird.default | Bird description | 
| chem2mech | Convert between mechanical and chemical power | 
| climbing_birds | Climbing birds | 
| computeAvailablePower | Compute available power | 
| computeBodyFrontalArea | Body frontal area from scaling relation | 
| computeChemicalPower | Convert mechanical power to chemical power | 
| computeChemicalPower.numeric | Convert mechanical power to chemical power | 
| computeChemicalPower.power.mechanical | Convert mechanical power to chemical power | 
| computeFlappingPower | Calculate aerodynamic power flapping flight | 
| computeFlightPerformance | Compute characteristics of a power curve | 
| fD.ind | Coefficient for thrust dependency of drag and power factors | 
| fD.pro0 | Coefficient for thrust dependency of drag and power factors | 
| fD.pro2 | Coefficient for thrust dependency of drag and power factors | 
| findMaximumClimbRate | Find maximum climb rate | 
| findMaximumPowerSpeed | Finds speed for which power required equals maximum available power | 
| findMaximumRangeSpeed | Find maximum range speed | 
| findMinimumPowerSpeed | Find speed for minimum power | 
| findMinimumTimeSpeed | Find speed for migration time minimization | 
| fP.ind | Coefficient for thrust dependency of drag and power factors | 
| fP.pro0 | Coefficient for thrust dependency of drag and power factors | 
| fP.pro2 | Coefficient for thrust dependency of drag and power factors | 
| mech2chem | Convert between mechanical and chemical power | 
| reducedFrequency | Function to compute reduced frequency |