NEXRAD weather radar data were used to observe the movements of waterfowl disturbed by boaters in the Upper Mississippi River System. Observers stationed on a bluff overlooking Lake Onalaska recorded disturbances in Voluntary Wildlife Avoidance Areas NEXRAD data were then collected from dates and times corresponding to the larger disturbance events. Using the radar data, it was found that the disturbed waterfowl moved at least as far south as Lake Winneshiek and northwest to the Trempealeau NWR. Such disruptions of foraging and resting activities may have consequences to the migrating waterfowl.
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U.S. Department of the Interior