Preset birds data, extracted from Flight Pennycuick(2008). Fat mass percentage generated randomly where zero.
birdsA data frame with 28 observations and 5 variables not counting the name.
Name of bird species
Body mass in Kg. Includes fuel (fat mass). In this case the crops were empty but otherwise one should always use the all-up mass (body mass + crop)
Length of wings spread out in meters
Mass of fat that is consumable as fuel in Kg
Order of the species (passerine vs non-passerine)
Area of both wing projected on a flat surface in meters squared
Mass in Kg. of flight muscles