| On the under side the primaries are fulvous on the costa at the base. |
| They also have upperparts bright fulvous or brownish, intermixed with dusky and the underparts and feet white. |
| The maximum age of a fulvous whistling-duck recorded in nature is 6 years and 6 months. |
| The fulvous tree-duck ranges on our hunting grounds as far north as Sacramento, where occasionally one is killed. |
| In flight fulvous shows a strong contrast between blackish underwings and tawny body, and a white rump band. |
| The fulvous whistling-duck's name comes from the hoarse whistling sound it makes and from its coloring. |
