Bird
Lesser Scaup
Aythya affinis
A winter visitor to West Virginia, found in all 55 counties and 3 habitats.
- Here
- Winter and on migration
- Nesting
- Not known to nest here
- Range
- All 55 counties
- Habitats
- 3

At a glance
- Group
- Birds
- Here
- Winter and on migration
- Nesting
- Not known to nest here
- Range
- All 55 counties
- Habitats
- 3
- Habitat models
- Winter
Where it lives
The places its habitat model includes. It is not found everywhere a habitat occurs.
Habitats in West Virginia 3
Each habitat page lists the plants and wildlife also found there.
Disturbed and introduced wetlands
Wet ground taken over by weedy or introduced plants after disturbance, such as common reed, Chinese tallow or tamarisk stands; the upland counterpart is roadsides, fields and disturbed ground.
Still water and its edges: ponds, lakes, millponds and reservoirs.
Streams, rivers and their banks
Flowing water and its banks, bars and rocky shoals.
Other habitats in its models (49)
Land cover, or classes with no habitat page in West Virginia. Those recorded in West Virginia first, the rest by region.
Elsewhere in the South (32)
- Atlantic and Gulf Coastal Plain Interdunal Wetland Winter.
- Atlantic Coastal Plain Central Fresh-Oligohaline Tidal Marsh Winter.
- Atlantic Coastal Plain Central Salt and Brackish Tidal Marsh Winter.
- Atlantic Coastal Plain Embayed Region Tidal Freshwater Marsh Winter.
- Atlantic Coastal Plain Embayed Region Tidal Salt and Brackish Marsh Winter.
- Atlantic Coastal Plain Indian River Lagoon Tidal Marsh Winter.
- Atlantic Coastal Plain Large Natural Lakeshore Winter.
- Atlantic Coastal Plain Northern Tidal Wooded Swamp Winter.
- Atlantic Coastal Plain Peatland Pocosin Winter.
- Atlantic Coastal Plain Southern Tidal Wooded Swamp Winter.
- Atlantic Coastal Plain Xeric River Dune Winter.
- Central Florida Herbaceous Pondshore Winter.
- Central Florida Herbaceous Seep Winter.
- East Gulf Coastal Plain Tidal Wooded Swamp Winter.
- Florida Big Bend Fresh-Oligohaline Tidal Marsh Winter.
- Florida Big Bend Salt-Brackish Tidal Marsh Winter.
- Floridian Highlands Freshwater Marsh Winter.
- Mississippi River Bottomland Depression Winter.
- Mississippi Sound Salt and Brackish Tidal Marsh Winter.
- South Florida Bayhead Swamp Winter.
- South Florida Cypress Dome Winter.
- South Florida Everglades Sawgrass Marsh Winter.
- South Florida Freshwater Slough and Gator Hole Winter.
- South Florida Mangrove Swamp Winter.
- South Florida Wet Marl Prairie Winter.
- Southern Coastal Plain Herbaceous Seepage Bog Winter.
- Southern Coastal Plain Hydric Hammock Winter.
- Southern Coastal Plain Nonriverine Basin Swamp Winter.
- Southern Coastal Plain Nonriverine Cypress Dome Winter.
- Southern Coastal Plain Seepage Swamp and Baygall Winter.
- West Gulf Coastal Plain Near-Coast Large River Swamp Winter.
- West Gulf Coastal Plain Small Stream and River Forest Winter.
Northeast (2)
- Atlantic Coastal Plain Northern Fresh and Oligohaline Tidal Marsh Winter.
- Atlantic Coastal Plain Northern Tidal Salt Marsh Winter.
Land cover and other classes (15)
- Atlantic Coastal Plain Clay-Based Carolina Bay Forested Wetland Winter.
- Atlantic Coastal Plain Clay-Based Carolina Bay Herbaceous Wetland Winter.
- Atlantic Coastal Plain Depression Pondshore Winter.
- Atlantic Coastal Plain Streamhead Seepage Swamp - Pocosin - and Baygall Winter.
- East Gulf Coastal Plain Southern Depression Pondshore Winter.
- Gulf and Atlantic Coastal Plain Swamp Systems Winter.
- Open Water (Aquaculture) Winter.
- Open Water (Brackish/Salt) Winter.
- Southern Coastal Plain Nonriverine Basin Swamp - Okefenokee Nupea Modifier Winter.
- Southern Coastal Plain Nonriverine Basin Swamp - Okefenokee Pine Modifier Winter.
- Southern Piedmont/Ridge and Valley Upland Depression Swamp Winter.
- Texas-Louisiana Coastal Prairie Slough Winter.
- Unconsolidated Shore Winter.
- Unconsolidated Shore (Beach/Dune) Winter.
- Unconsolidated Shore (Lake/River/Pond) Winter.
Seasons in West Virginia
- Migratory: does not nest here, in all 55 counties.
- Winter: does not nest here, in 4 of 55 counties.
Food plants
Diet records by plant genus, from studies across North America. Not a record from this state. Plants matched by genus.
Native plants in these genera 88
- Bushy KnotweedPolygonum ramosissimum subsp. prolificum
- Erect KnotweedPolygonum erectum
- Pleatleaf KnotweedPolygonum tenue
- Tall KnotweedPolygonum ramosissimum
- Flatstem PondweedPotamogeton zosteriformis
- Grassleaf PondweedPotamogeton gramineus
- Oakes' pondweedPotamogeton oakesianus
- Potamogeton foliosus subsp. foliosusPotamogeton foliosus subsp. foliosus
- Potamogeton pusillus subsp. pusillusPotamogeton pusillus subsp. pusillus
- Small pondweedPotamogeton pusillus subsp. tenuissimus
- Spiral Pondweed, Northern Snailseed PondweedPotamogeton spirillus
- Floating PondweedPotamogeton natans
- Illinois PondweedPotamogeton illinoensis
- Largeleaf PondweedPotamogeton amplifolius
- Leafy PondweedPotamogeton foliosus
- Longleaf PondweedPotamogeton nodosus
- Ribbonleaf PondweedPotamogeton epihydrus
- Small PondweedPotamogeton pusillus
- Snail-seed PondweedPotamogeton bicupulatus
- Spotted PondweedPotamogeton pulcher
- Tennessee Pond WeedPotamogeton tennesseensis
- Waterthread PondweedPotamogeton diversifolius
- Black-girdle BulrushScirpus atrocinctus
- Northeastern BulrushScirpus ancistrochaetus
Plant genera in its diet records (18)
- Polygonum Seeds. 5 diet records. 4 native plants in West Virginia
- Potamogeton Seeds and leaves. 5 diet records. 18 native plants in West Virginia
- Scirpus Seeds. 4 diet records. 11 native plants in West Virginia
- Sagittaria Seeds. 3 diet records. 6 native plants in West Virginia
- Lemna Leaves. 2 diet records. 5 native plants in West Virginia
- Bolboschoenus Seeds. 1 diet record. 1 native plant in West Virginia
- Ceratophyllum Seeds. 1 diet record. 2 native plants in West Virginia
- Chara Leaves. 1 diet record. 0 native plants in West Virginia
- Cyperus Seeds. 1 diet record. 16 native plants in West Virginia
- Dysphania Seeds. 1 diet record. 0 native plants in West Virginia
- Myriophyllum Leaves. 1 diet record. 3 native plants in West Virginia
- Najas Seeds. 1 diet record. 2 native plants in West Virginia
- Nymphaea Seeds. 1 diet record. 0 native plants in West Virginia
- Persicaria Seeds. 1 diet record. 10 native plants in West Virginia
- Rumex Seeds. 1 diet record. 3 native plants in West Virginia
- Schoenoplectus Seeds. 1 diet record. 6 native plants in West Virginia
- Stuckenia Seeds. 1 diet record. 1 native plant in West Virginia
- Zizania Leaves. 1 diet record. 0 native plants in West Virginia
Also found in its main habitats
Its main habitats in West Virginia, by how much of its habitat model each one is, with the birds most characteristic of each and the plants that grow wild there. Shared habitat, not food.
Disturbed and introduced wetlands
Birds 112
- Northern WaterthrushSeiurus noveboracensis
- Forster's TernSterna forsteri
- Black TernChlidonias niger
- Bonaparte's GullChroicocephalus philadelphia
- Caspian TernHydroprogne caspia
- Common LoonGavia immer
- Common TernSterna hirundo
- DickcisselSpiza americana
- DunlinCalidris alpina
- Greater ScaupAythya marila
- Lapland LongspurCalcarius lapponicus
- Least SandpiperCalidris minutilla
Plants 12
- Slender FimbryFimbristylis autumnalis
- Blue MistflowerConoclinium coelestinum
- False DaisyEclipta prostrata
- Intermediate Spike RushEleocharis intermedia
- Blunt Spike RushEleocharis obtusa
- Bristly SedgeCarex comosa
- Sensitive FernOnoclea sensibilis
- Heart Leaf WillowSalix eriocephala
- Cuscuta gronovii var. gronoviiCuscuta gronovii var. gronovii
- European Gray WillowSalix cinerea
- Ricefield FlatsedgeCyperus iria
- White WillowSalix alba
Ponds, lakes and their shores
Birds 58
- BuffleheadBucephala albeola
- Common GoldeneyeBucephala clangula
- Eurasian WigeonAnas penelope
- Long-tailed DuckClangula hyemalis
- RedheadAythya americana
- Black TernChlidonias niger
- Blue-winged TealAnas discors
- Bonaparte's GullChroicocephalus philadelphia
- Caspian TernHydroprogne caspia
- Common LoonGavia immer
- Common TernSterna hirundo
- Greater ScaupAythya marila
Plants 109
- Stiff Yellow FlaxLinum medium
- Northeastern BulrushScirpus ancistrochaetus
- Sago PondweedStuckenia pectinata
- Common BladderwortUtricularia macrorhiza
- Horned PondweedZannichellia palustris
- Coastal Plain WillowSalix caroliniana
- Northern St. John's-wortHypericum boreale
- Southern Marsh St. John's-wortTriadenum tubulosum
- White Water CrowfootRanunculus longirostris
- Engelmann's ArrowheadSagittaria engelmanniana
- Grassy ArrowheadSagittaria graminea
- Whiteroot RushJuncus brachycarpus
Streams, rivers and their banks
Birds 88
- KilldeerCharadrius vociferus
- Little Blue HeronEgretta caerulea
- Marsh WrenCistothorus palustris
- Lark SparrowChondestes grammacus
- Lincoln's SparrowMelospiza lincolnii
- Ring-billed GullLarus delawarensis
- Virginia RailRallus limicola
- Green HeronButorides virescens
- Prothonotary WarblerProtonotaria citrea
- Yellow-throated WarblerDendroica dominica
- SoraPorzana carolina
- Golden EagleAquila chrysaetos
Plants 232
- Sandbar WillowSalix interior
- Primrose-leaf VioletViola primulifolia
- Sand GrapeVitis rupestris
- Tall Blue Wild IndigoBaptisia australis
- Twisted SedgeCarex torta
- Earlyleaf BromeBromus latiglumis
- Greenfruit Bur-reedSparganium emersum var. acaule
- Ferris Scouring RushEquisetum × ferrissii
- Ozark Tassel-rueTrautvetteria applanata
- Virginia Sida; Virginia Mallow; Virginia FanpetalsRipariosida hermaphrodita
- Coastal Plain WillowSalix caroliniana
- Grass-leaved Flat-top GoldenrodEuthamia graminifolia
Sources
- USGS Gap Analysis Project habitat models (2001)
- USGS GAP winter habitat model for Lesser Scaup Slow streams only
- USGS Gap Analysis Project range maps (2001), modeled by watershed; migratory gives no dates
- NatureServe Explorer (CC BY 4.0), habitat names
- US Census TIGER/Line counties
- Names follow the USGS Gap Analysis Project (2001)
- Avian Diet Database (Hurlbert Lab) (CC0 1.0), diet records by plant genus























































