Publications
USGS Northern Prairie Wildlife Research Center staff publish results of their research in USGS series reports and in peer-reviewed journals. Publication links are below. Information on all USGS publications can be found at the USGS Publications Warehouse.
Filter Total Items: 1961
Selective feeding by juvenile diving ducks in summer Selective feeding by juvenile diving ducks in summer
Waterfowl often fail to use foods that seem plentiful to the investigator. The extent to which selective feeding or rejection of foods is a function of behavioral and morphological adaptations of the species, conditioned behavior of the individual, or individual preference for certain foods has not been appraised. The objectives of our study were to determine: (1) the extent of selective...
Authors
James C. Bartonek, J.J. Hickey
Additional breeding birds in Roscoe area Additional breeding birds in Roscoe area
Abstract has not been submitted
Authors
Harold F. Duebbert
Nesting of the upland plover on the Missouri Coteau Nesting of the upland plover on the Missouri Coteau
Abstract has not been submitted
Authors
K.F. Higgins, Harold F. Duebbert, R.B. Oetting
Use of flooded timber by waterfowl at the Montezuma National Wildlife Refuge Use of flooded timber by waterfowl at the Montezuma National Wildlife Refuge
Waterfowl use of bottomland hardwood timber stands which were flooded and killed was studied at the Montezuma National Wildlife Refuge, Seneca Falls, New York, from 1962 to 1964. Comparisons of use were made among six habitat types containing dead timber, stumps, and no timber, and with and without emergent vegetation. An index to waterfowl use was derived by direct counts and by counts...
Authors
L.M. Cowardin
Aspergillosis in wintering mallards Aspergillosis in wintering mallards
No abstract available.
Authors
G.L. Pearson
Do you really know your geese? Do you really know your geese?
Abstract has not been submitted
Authors
G.A. Sherwood
The ecology of Malheur Lake and management implications The ecology of Malheur Lake and management implications
No abstract available.
Authors
Harold F. Duebbert
Build-up of grit in three pochard species in Manitoba Build-up of grit in three pochard species in Manitoba
Abstract has not been submitted
Authors
James C. Bartonek
Mallard hatching from an egg cracked by freezing Mallard hatching from an egg cracked by freezing
The eggs of early-nesting waterfowl in North Dakota are frequently exposed to subfreezing temperatures. Mallards (Anas platyrhynchos) and Pintail (Anas acuta), normally the first ducks to arrive in the spring, begin limited early nesting in min-April. Nighttime temperatures during this period frequently drop below freezing, and late spring blizzards are not unusual.
Authors
R. J. Greenwood
Aging small Canada geese by neck plumage Aging small Canada geese by neck plumage
The neck plumage method, a new technique for separating immature from adult Canada geese (Branta canadensis) in the hand, was evaluated by comparison with the notched tail feather and cloacal examination methods. Two (1.4 percent) of 141 geese examined were misaged, resulting in a 6 percent error in the immature-adult ratio obtained by the neck plumage method. The neck plumage method is...
Authors
K.F. Higgins, L.J. Schoonover
The vital missing link--environmental education The vital missing link--environmental education
Abstract has not been submitted
Authors
G.A. Sherwood