Bird Banding Laboratory


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Pre-Hunting season Duck Banding (Mallard (Anas platyrhynchos),
Blue-winged Teal (Anas discors))

Prairie Provinces

 1987-present

 


Summary of data file

Project number: 2
Species included in study: Dabbling ducks.  Most data are from mallards (Anas platyrhynchos) and blue-winged teal (Anas discors).
Location of study: Sites in Canadian provinces (Alberta, Saschatewan, Manitoba, Northwest Territories, Ontario)
Time span:

Banding data from early 1960's until present
Dead recovery data from early 1960's until present
Live recapture data from 1987 until present.

Number of years: 14 years of live recapture data
Approximate number of newly banded birds per year: > 16,000 individuals of a single species in some Provinces
Approximate number of recaptures/resightings per year: > 275 individuals of a single species in some Provinces
Approximate number of dead recoveries per year: > 3500 individuals of a single species banded in some Provinces
Banding codes associated with data: 3.00 (released alive), 0.51(nasal saddles), 0.03 (reward band study) 5.00(injured birds)
Are data digitally stored: yes
Data access: Archived at Bird Banding Lab. 
Person(s) who collected the data set: FWS Flyway biologists/pilots US State and Canadian Provincial biologists, University personnel, Ducks Unlimited Canada
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Background and Motivation

Every year waterfowl biologists band thousands of dabbling ducks throughout the Canada Provinces.  These ducks are banded on the breeding grounds at the end of the breeding season and hunted the following fall/winter.  The dead recoveries are reported to the BBL.  These data are used in estimating harvest rates and survival rates of ducks and are part of the larger FWS migratory waterfowl management plan.  However when duck banding takes place, many recaptures are also made.  Starting in 1987, some of these recaptures were sent to Patuxent Wildlife Research Center.  In 2000, all of these data were entered into the BBL database.  The submittal of duck-recapture data has continued to increase over these years.  The most data has come from Saskatchewan, Alberta and the Northwest Territories.

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Spatial Information

Location of study area: Banding takes place at locations throughout the Canadian Provinces.  The most recapture data are from Alberta, Saskatchewan and the Northwest Territories, with lesser amounts from Ontario and Manitoba.  In future years, reporting recapture data will become more routine for all Provinces.
Study area(s) and sampling changes over time: Banding locations are chosen to be in each reference area of the duck management plan.  Locations are chosen for concentrations of ducks, access and overall logistical concerns.  On a large scale, banding sites are used each year, however on a fine scale individual ponds where banding takes place can change year to year.   If one pond is dry in one year or is unproductive, a pond close by may be used.
Map/photo of study area:    (under construction)
Habitat change: The main habitat change over time is the occurrence of wet and dry years.  This has been shown to affect duck distributions. 
Comments:
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Temporal Information

Time span: Recapture data - 1987 -present.
Number of years: 13
Missed years: Not all banding sites submitted recapture data in the early years (1987 being the first year)..  Since 1995 data submissions have been consistent.
Time of year for data collection: Banding takes place during August-September (pre-hunting season)
Coverage of study area: Generally sites are sampled the whole banding season in a trap-line fashion.  Traps are set and checked daily.
How often would the study area be sampled?: Traps are checked daily, but each individual duck is recorded only once per season.
Effort data: Yes measured in trap-days.
Is the study ongoing?: Yes
Comments: For detailed annual banding reports contact James F. Voelzer  or Karen Tiedt 
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Operational information

Methods used to catch birds: Swim-in baited traps Trap with ducks
Marking techniques used in addition to a single aluminum band: double bands (reward bands), nasal saddles, radio telemeters
Comments:
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Associated data

Additional data is located in the yearly summaries obtainable from James F. Voelzer  or Karen Tiedt 

User-defined fields in Band Manager:

Molt status fields are used in the Band Manager program in which data are entered. Currently this data is not at the BBL but will be in the future.

Other data:

Weather variables, habitat quality variables, and yearly summaries are located in annual reports.

Comments:

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Publications and other available information

Publications:

Hyperlinks: FWS Division of Migratory Bird Management
Other Resources: Annual Reports
Comments:
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Contact

Data 

Bird Banding Lab, 12100 Beech Forest Road, Laurel, MD 20708-4037.  

Operations and annual reports

James F. Voelzer (Section Chief) or Karen Tiedt (Administrative Assistant)
U.S. Fish and Wildlife Service/MBMO
911 N.E. 11th Avenue, Room 125
Portland, OR 97232-6228
phone: 503-231-6162
fax:503-231-6228
email:   james_voelzer@fws.govkaren_tiedt@fws.gov

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Other

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