Bird
Lesser Scaup
Aythya affinis
A winter visitor to Mississippi, found in all 82 counties and 8 habitats.
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 82 counties
- Habitats
- 8

At a glance
- Group
- Birds
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 82 counties
- Habitats
- 8
- Habitat models
- Winter
Where it lives
The places its habitat model includes. It is not found everywhere a habitat occurs.
Habitats in Mississippi 8
Each habitat page lists the plants and wildlife also found there.

Open sand of beaches, dunes and the hollows between them.
Open, wet, seepage-fed bogs of the Coastal Plain and Sandhills, often with pitcher plants.
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.
Open, herb-covered wetlands with fresh, non-tidal water.
Still water and its edges: ponds, lakes, millponds and reservoirs.
Coastal marshes flooded by salty or brackish tides.
Salt and brackish open water of sounds, bays and estuaries, with the mud and sand flats and seagrass beds that tides cover and uncover; the vegetated marsh is salt and brackish marshes.
Other habitats in its models (38)
Land cover, or classes with no habitat page in Mississippi. Those recorded in Mississippi first, the rest by region.
Elsewhere in the South (25)
- 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.
- Cumberland Riverscour Winter.
- Florida Big Bend Fresh-Oligohaline Tidal Marsh Winter.
- Florida Big Bend Salt-Brackish Tidal Marsh Winter.
- Floridian Highlands Freshwater 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 Hydric Hammock 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 (11)
- 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.
- Open Water (Aquaculture) 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 (Lake/River/Pond) Winter.
Seasons in Mississippi
- Winter: does not nest here, in all 82 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 102
- Erect KnotweedPolygonum erectum
- Potamogeton pusillus subsp. pusillusPotamogeton pusillus subsp. pusillus
- Small pondweedPotamogeton pusillus subsp. tenuissimus
- Largeleaf PondweedPotamogeton amplifolius
- Leafy PondweedPotamogeton foliosus
- Longleaf PondweedPotamogeton nodosus
- Ribbonleaf PondweedPotamogeton epihydrus
- Small PondweedPotamogeton pusillus
- Spotted PondweedPotamogeton pulcher
- Waterthread PondweedPotamogeton diversifolius
- Dark-green BulrushScirpus atrovirens
- Drooping BulrushScirpus lineatus
- Leafy BulrushScirpus polyphyllus
- Rufous BulrushScirpus pendulus
- Spreading BulrushScirpus divaricatus
- Woolgrass BulrushScirpus cyperinus
- Broadleaf ArrowheadSagittaria latifolia
- Short Beak ArrowheadSagittaria brevirostra
- Broad Leaf Arrow HeadSagittaria latifolia var. latifolia
- Bull-tongue ArrowheadSagittaria lancifolia
- Chapman's ArrowheadSagittaria chapmanii
- Delta ArrowheadSagittaria platyphylla
- Dwarf ArrowheadSagittaria subulata
- Engelmann's ArrowheadSagittaria engelmanniana
Plant genera in its diet records (18)
- Polygonum Seeds. 5 diet records. 1 native plant in Mississippi
- Potamogeton Seeds and leaves. 5 diet records. 9 native plants in Mississippi
- Scirpus Seeds. 4 diet records. 6 native plants in Mississippi
- Sagittaria Seeds. 3 diet records. 11 native plants in Mississippi
- Lemna Leaves. 2 diet records. 6 native plants in Mississippi
- Bolboschoenus Seeds. 1 diet record. 1 native plant in Mississippi
- Ceratophyllum Seeds. 1 diet record. 2 native plants in Mississippi
- Chara Leaves. 1 diet record. 0 native plants in Mississippi
- Cyperus Seeds. 1 diet record. 35 native plants in Mississippi
- Dysphania Seeds. 1 diet record. 0 native plants in Mississippi
- Myriophyllum Leaves. 1 diet record. 3 native plants in Mississippi
- Najas Seeds. 1 diet record. 2 native plants in Mississippi
- Nymphaea Seeds. 1 diet record. 2 native plants in Mississippi
- Persicaria Seeds. 1 diet record. 10 native plants in Mississippi
- Rumex Seeds. 1 diet record. 3 native plants in Mississippi
- Schoenoplectus Seeds. 1 diet record. 8 native plants in Mississippi
- Stuckenia Seeds. 1 diet record. 1 native plant in Mississippi
- Zizania Leaves. 1 diet record. 2 native plants in Mississippi
Also found in its main habitats
Its main habitats in Mississippi, 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.
Swamps
Birds 109
- Louisiana WaterthrushSeiurus motacilla
- Northern Saw-whet OwlAegolius acadicus
- Kentucky WarblerOporornis formosus
- Prothonotary WarblerProtonotaria citrea
- Rose-breasted GrosbeakPheucticus ludovicianus
- Seaside SparrowAmmodramus maritimus
- Swainson's WarblerLimnothlypis swainsonii
- Wilson's PloverCharadrius wilsonia
- Eurasian WigeonAnas penelope
- Lapland LongspurCalcarius lapponicus
- Ruddy TurnstoneArenaria interpres
- Blue-headed VireoVireo solitarius
Plants 291
- Black Highbush BlueberryVaccinium fuscatum
- Dahoon HollyIlex cassine
- Carolina AshFraxinus caroliniana
- Dense-flower SmartweedPersicaria densiflora
- Water HickoryCarya aquatica
- Swamp TupeloNyssa biflora
- Bent SedgeCarex styloflexa
- Cypress-swamp SedgeCarex joorii
- Dark-green SedgeCarex venusta
- Fringed SedgeCarex crinita
- Ravenfoot SedgeCarex crus-corvi
- Southern Long SedgeCarex lonchocarpa
Coastal dunes and beaches
Birds 127
- Black-throated Green WarblerDendroica virens
- Sooty TernOnychoprion fuscatus
- Black-bellied PloverPluvialis squatarola
- Marbled GodwitLimosa fedoa
- Rock PigeonColumba livia
- Short-billed DowitcherLimnodromus griseus
- Horned LarkEremophila alpestris
- KilldeerCharadrius vociferus
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Purple MartinProgne subis
- Red KnotCalidris canutus
- Sandwich TernThalasseus sandvicensis
Plants 118
- Beach Morning-gloryIpomoea imperati
- Ipomoea cordatotriloba var. cordatotrilobaIpomoea cordatotriloba var. cordatotriloba
- Northern Seaside SpurgeEuphorbia polygonifolia
- Southern Seaside SpurgeEuphorbia bombensis
- Mound-lily YuccaYucca gloriosa
- Agalinis harperiAgalinis harperi
- Panicum amarum var. amarumPanicum amarum var. amarum
- Rough American Barnyard GrassEchinochloa muricata var. muricata
- Northern Seabeach OrachAtriplex mucronata
- Atriplex cristataAtriplex cristata
- Dune Marsh-elderIva imbricata
- Pinewoods FingergrassEustachys petraea
Disturbed and introduced wetlands
Birds 158
- Black TernChlidonias niger
- Bronzed CowbirdMolothrus aeneus
- DickcisselSpiza americana
- Bell's VireoVireo bellii
- Black-bellied PloverPluvialis squatarola
- BobolinkDolichonyx oryzivorus
- Cackling GooseBranta hutchinsii
- Chestnut-sided WarblerDendroica pensylvanica
- Magnolia WarblerDendroica magnolia
- Northern Saw-whet OwlAegolius acadicus
- Red-breasted NuthatchSitta canadensis
- Rufous HummingbirdSelasphorus rufus
Plants 26
- Slender FimbryFimbristylis autumnalis
- Intermediate Spike RushEleocharis intermedia
- Purple SpikerushEleocharis atropurpurea
- Blue MistflowerConoclinium coelestinum
- BagpodGlottidium vesicarium
- Cyperus ochraceusCyperus ochraceus
- False DaisyEclipta prostrata
- Blunt Spike RushEleocharis obtusa
- Bristly SedgeCarex comosa
- Shortbeak BeaksedgeRhynchospora nitens
- Southern Marsh YellowcressRorippa teres
- Sensitive FernOnoclea sensibilis
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



































































