Species: Anas clypeata
Northern Shoveler
Species
Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Anseriformes
Family
Anatidae
Genus
Anas
NatureServe
Classification
Other Global Common Names
Pato Cucharón-Norteño - canard souchet
Informal Taxonomy
Animals, Vertebrates - Birds - Waterfowl
Formal Taxonomy
Animalia - Craniata - Aves - Anseriformes - Anatidae - Anas - See Livezey (1991) for a phylogenetic analysis and classification (supergenera, subgenera, infragenera, etc.) of dabbling ducks based on comparative morphology; one conclusion was that the four species of shovelers are monophyletic.
Ecology and Life History
Migration
false - false - true - Small flocks migrate northward in spring, break up into pairs or small groups upon arrival in nesting areas. Flocks start migrating southward in late August or early September. (departs far north July-August). Present in northern South America mostly October-March (Hilty and Brown 1986).
Non-migrant
false
Locally Migrant
false
Food Comments
Opportunistic forager. Eats seeds of sedges, bulrushes, saw grass, pondweeds, smartweeds, algae, duckweeds, etc; also mollusks, aquatic insects, and crustaceans. In Manitoba, males and females ate primarily aquatic invertebrates during prelaying and laying periods (Ankney and Afteon 1988). Aquatic invertebrates (e.g., water boatmen) may dominate winter diet in some areas. Usually dabbles at water surface.
Reproduction Comments
Breeding begins in late March in the south to early June in the north. Clutch size: 6-14 (usually 10-12). Incubation: 23-25 days, by female (Terres 1980). Young are tended by female, independent in about 6-7 weeks (Harrison 1978). Clutch size may be limited by lipid reserves rather than by protein acquisition (Ankney and Afteon 1988).
Ecology Comments
Large concentrations seen at migration staging areas. Usually feeds in pairs or small groups.
Length
48
Weight
636
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-11-21
Global Status Last Changed
1996-11-21
Other Status
LC - Least concern
Distribution
Conservation Status Map
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Global Range
H - >2,500,000 square km (greater than 1,000,000 square miles) - H - BREEDING: Holarctic. In North America, primarily from Alaska east to Manitoba, south to California, New Mexico, Nebraska, western Iowa, locally eastward; also in Eurasia. NON-BREEDING: southwestern British Columbia, Arizona, east to Gulf Coast, coastal Georgia and South Carolina south to northern Colombia (rarely northern Venezuela), West Indies, and Hawaii, rarely north to north-central and northeastern U.S.; also Old World. In the U.S., the highest winter densities occur in the San Joaquin and Imperial valleys and the Clear Lake refuge in California, and the Bitter Lake refuge in New Mexico; winter abundance may vary greatly from year to year at a particular location (Root 1988).
Global Range Code
H
Global Range Description
>2,500,000 square km (greater than 1,000,000 square miles)