Qualitative Analysis

Sex was also predicted by using visual cues such as AP, head slope, and bill color. Hypothesis: males have a isoloated AP, canvasback-like head slope, and yellow bill color. Females have a connected AP, significant slope to head, and olive bill color.

AP was limited to being defined in AHY birds. Still trying to develop ways to support bill color and head slope using the data collected.

Sample Sizes:

AHY-F (n = 21)

AHY-M (n = 26)

AP Defined