It is conducted cooperatively by the U.S. … The survey methodology was redesigned and updated in 1991 and has been conducted in its current form since 1992. The primary purpose of the survey is to provide information on spring population size and trajectory for certain North American duck species. Waterfowl Breeding Population and Habitat Survey. SOPs for the CDFW Waterfowl Breeding Population Survey (hereafter California survey) are as follows: Survey Timing In the Central Valley and the Suisun Marsh about half of the duck nests are initiated by the last week of April. Potential bias in breeding population estimates of certain duck species from the Waterfowl Breeding Population and Habitat Survey (WBPHS) has been a concern for decades. Waterfowl Breeding Population and Habitat Survey. waterfowl breeding population survey southern and central alberta 0 fort st. john alberta may 1993 0 peace 0 river slave lake lac labiche • • cold lake , edmonton .g vermiuon • red deer •calgary . The primary purpose of the survey is to provide information on spring population size and trajectory for certain North American duck species. The primary purpose of the survey is to provide information on spring population size and trajectory for certain North American duck species. Waterfowl Breeding Population and Habitat Survey. The Waterfowl Breeding Population and Habitat Survey covers more than 3.6 million km² of the northern United States and Canada, and includes much of the primary waterfowl nesting areas in mid-continent and eastern North America ().. Research Article Evaluating the Waterfowl Breeding Population and Habitat Survey for Scaup MICHAEL L. SCHUMMER,1,2 Long Point Waterfowl and Wetlands Research Program/ Bird Studies Canada, Port Rowan, ON N0E 1M0, Canada ALAN D. AFTON, School of Renewable Natural Resources, Louisiana State University, Baton Rouge, LA 70803, USA SOPs for the CDFW Waterfowl Breeding Population Survey (hereafter California survey) are as follows: Survey Timing In the Central Valley and the Suisun Marsh about half of the duck nests are initiated by the last week of April. … The California Department of Fish and Wildlife (CDFW) has completed its 2018 waterfowl breeding population survey -- and it’s good news for hunters and birdwatchers alike, as the total waterfowl population in the state now tops out at over a half million, for the first time in six years. The Waterfowl Breeding Population and Habitat Survey has been conducted every year since 1955. General facts. Waterfowl . These surveys monitor breeding duck populations and critical wetland habitat conditions, … Potential bias in breeding population estimates of certain duck species from the Waterfowl Breeding Population and Habitat Survey (WBPHS) has been a concern for decades. Fall and winter temperatures were mainly below average. The Waterfowl Breeding Population and Habitat Survey was initiated experimentally in 1947 and became operational in 1955. Anything that dictates waterfowl hunting season lengths, dates and bag limits always catches hunters' attention.