1. Black head and neck separate drake from similarly patterned drake Pochard.

2. On account of their shape, the fruits belong to the C3 type under the Pochard classification.

3. Canvasback, (Aythya valisineria), bay duck, or pochard, of the family Anatidae, one of the most popular of game birds

4. The pochard breeding programme is part of a joint project to save the bird by Durrell Wildlife Conservation Trust and Wildfowl & Wetlands Trust (WWT), the Peregrine Fund, Asity Madagascar and the island's government.