The ducks are also adorned "jewelry" so they can be identified in the field from afar.
A year old duck just about to be put in the box awaiting release.
They are released in groups.
Weighing the ducks. I was surprised at all they recorded on each duck. They measured the length and width of the bill, the length of the primary flight feather on the left wing, and a couple more that I now have forgot.
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