Preserving the White-Winged Duck

Nancy Drilling reports on efforts in Indonesia to conserve the very rare White-Winged Duck.

Measurement and Data Collection in the Field

Black bear researcher Katie Settlage describes a mark/recapture study on black bears. A black bear weight estimator and morphometeric dataset is included for classroom use. Page 2 of this article provides an equivalent weight estimation formula for African elephants, along with a dataset of elephant measurements.