Desmos Graphing Calculator
Verbal·Information and Ideas·Command of Evidence
easyAvian Mass and Flight Capability
| Common name | Average mass (kg) | Capable of flight? |
|---|---|---|
| Dwarf cassowary | 19.7 | No |
| Somali ostrich | 41.0 | No |
| Mute swan | 11.9 | Yes |
| Andean condor | 11.3 | Yes |
Most bird species that are capable of flight weigh less than a kilogram (kg), which is not surprising considering the burden that extra body weight puts on a flying animal. But not all flying birds are so light, as we can see most clearly in the example of the .
A
mute swan, which has an average mass of 11.9 kg.
B
Somali ostrich, which has a higher average mass than the dwarf cassowary.
C
Somali ostrich, which has an average mass of 90.0 kg.
D
Andean condor, which has an average mass below 10 kg.