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Public Domain Picture: Glassing for Greenheads

Courtesy: US Fish & Wildlife Service
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Glassing for Greenheads
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Glassing for Greenheads
Alright, so we're actually looking for more than just Mallards (Greenheads). Each year, the USFWS conducts '4 Square Mile Surveys'. These counts are more officially part of the Waterfowl Breeding Population and Production Estimates Survey. This survey began in 1987, and plots consisting of a four square mile area were selected throughout the Prairie Pothole Region. Within each of those areas, certain wetlands are identified to be surveyed year after year. The number, species, and sex of waterfowl are recorded as well as the wetland type and fullness. These numbers are combined and tabulated to come up with an estimate of the breeding population of many waterfowl species each year. In this photo, the Kulm WMD Refuge Manager uses a spotting scope to help identify some divers at the far side of a large wetland in LaMoure County during a survey. Photo Credit: Krista Lundgren/USFWS
Date Added:
June 22, 2014
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Public Domain

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Produced by United States Government
The file available on this page is a work of the United States government. A work of the United States government, as defined by United States copyright law, is "a work prepared by an officer or employee of the U.S. government as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.
US Fish & Wildlife Service

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US Fish & Wildlife Service (Flickr Photostream)
External Site: US Fish & Wildlife Service
The U.S. Fish and Wildlife Service is a bureau within the U.S. Department of the Interior. Its mission is to work with others to conserve, protect and enhance fish, wildlife and plants and their habitats for the continuing benefit of the American people. USFWS National Digital Library The U.S. Fis
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