Canadian geese and goslings swimming.
USDA employee verifies barcode on collected fecal samples.
USDA stores fecal samples in secure container.
USDA biologist collects fecal samples.
USDA monitors Canadian geese.
The most northern point in the United States.
The Lapland Longspur is one of many species being monitored.
USDA personnel record samples taken from wild birds.
