Bird
Lesser Scaup
Aythya affinis
A winter visitor to Florida, found in all 67 counties and 13 habitats.
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 67 counties
- Habitats
- 13

At a glance
- Group
- Birds
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 67 counties
- Habitats
- 13
- Habitat models
- Winter
Where it lives
The places its habitat model includes. It is not found everywhere a habitat occurs.
Habitats in Florida 13
Each habitat page lists the plants and wildlife also found there.






Open, wet, seepage-fed bogs of the Coastal Plain and Sandhills, often with pitcher plants.
Depression ponds and limesinks
Shallow ponds in Coastal Plain depressions, such as limesinks and the ponds in some Carolina bays, that rise and fall with the seasons.
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.
Marshes along tidal rivers where the water is fresh but rises and falls with the tide.
Tidal forests and thickets of red, black and white mangrove along sheltered tropical and subtropical shores.
Dense evergreen shrub wetlands and bay forests on wet, acid peat of the Coastal Plain.
Coastal marshes flooded by salty or brackish tides.
Other habitats in its models (23)
Land cover, or classes with no habitat page in Florida. Those recorded in Florida first, the rest by region.
In Florida 3
- Central Florida Herbaceous Seep Winter.
- South Florida Freshwater Slough and Gator Hole Winter.
- South Florida Wet Marl Prairie Winter.
Elsewhere in the South (9)
- Atlantic Coastal Plain Embayed Region Tidal Freshwater Marsh Winter.
- Atlantic Coastal Plain Embayed Region Tidal Salt and Brackish Marsh Winter.
- Atlantic Coastal Plain Northern Tidal Wooded Swamp Winter.
- Atlantic Coastal Plain Peatland Pocosin Winter.
- Atlantic Coastal Plain Xeric River Dune Winter.
- Cumberland Riverscour Winter.
- Mississippi River Bottomland Depression 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 (9)
- Atlantic Coastal Plain Clay-Based Carolina Bay Forested Wetland Winter.
- Atlantic Coastal Plain Clay-Based Carolina Bay Herbaceous Wetland 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 Florida
- Winter: does not nest here, in all 67 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 116
- Florida JointweedPolygonum basiramia
- Hairy JointweedPolygonum delopyrum
- Largeflower JointweedPolygonum nesomii
- Largeleaf JointweedPolygonum smallianum
- October FlowerPolygonum polygamum var. brachystachyum
- Polygonella fimbriataPolygonum fimbriatum
- Polygonella polygamaPolygonum polygamum var. polygamum
- Small's JointweedPolygonum dentoceras
- Seabeach KnotweedPolygonum glaucum
- Tall JointweedPolygonum pinicola
- Florida PondweedPotamogeton floridanus
- Small pondweedPotamogeton pusillus subsp. tenuissimus
- Clasping-leaf PondweedPotamogeton perfoliatus
- Illinois PondweedPotamogeton illinoensis
- Leafy PondweedPotamogeton foliosus
- Longleaf PondweedPotamogeton nodosus
- Ribbonleaf PondweedPotamogeton epihydrus
- Small PondweedPotamogeton pusillus
- Spotted PondweedPotamogeton pulcher
- Waterthread PondweedPotamogeton diversifolius
- Drooping BulrushScirpus lineatus
- Rufous BulrushScirpus pendulus
- Spreading BulrushScirpus divaricatus
- Woolgrass BulrushScirpus cyperinus
Plant genera in its diet records (18)
- Polygonum Seeds. 5 diet records. 10 native plants in Florida
- Potamogeton Seeds and leaves. 5 diet records. 10 native plants in Florida
- Scirpus Seeds. 4 diet records. 4 native plants in Florida
- Sagittaria Seeds. 3 diet records. 12 native plants in Florida
- Lemna Leaves. 2 diet records. 5 native plants in Florida
- Bolboschoenus Seeds. 1 diet record. 1 native plant in Florida
- Ceratophyllum Seeds. 1 diet record. 3 native plants in Florida
- Chara Leaves. 1 diet record. 0 native plants in Florida
- Cyperus Seeds. 1 diet record. 37 native plants in Florida
- Dysphania Seeds. 1 diet record. 0 native plants in Florida
- Myriophyllum Leaves. 1 diet record. 3 native plants in Florida
- Najas Seeds. 1 diet record. 4 native plants in Florida
- Nymphaea Seeds. 1 diet record. 6 native plants in Florida
- Persicaria Seeds. 1 diet record. 11 native plants in Florida
- Rumex Seeds. 1 diet record. 1 native plant in Florida
- Schoenoplectus Seeds. 1 diet record. 7 native plants in Florida
- Stuckenia Seeds. 1 diet record. 1 native plant in Florida
- Zizania Leaves. 1 diet record. 1 native plant in Florida
Also found in its main habitats
Its main habitats in Florida, 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 93
- Black-throated Blue WarblerDendroica caerulescens
- Louisiana WaterthrushSeiurus motacilla
- Northern Saw-whet OwlAegolius acadicus
- Rose-breasted GrosbeakPheucticus ludovicianus
- Swainson's WarblerLimnothlypis swainsonii
- Blue-headed VireoVireo solitarius
- Kentucky WarblerOporornis formosus
- White-crowned PigeonPatagioenas leucocephala
- Yellow-throated WarblerDendroica dominica
- Acadian FlycatcherEmpidonax virescens
- Hooded WarblerWilsonia citrina
- Mangrove CuckooCoccyzus minor
Plants 353
- May HawthornCrataegus aestivalis
- Carolina AshFraxinus caroliniana
- Water HickoryCarya aquatica
- Bent SedgeCarex styloflexa
- Cypress-swamp SedgeCarex joorii
- Dark-green SedgeCarex venusta
- Ravenfoot SedgeCarex crus-corvi
- Weak Stellate SedgeCarex seorsa
- White-edge SedgeCarex debilis
- Iris hexagonaIris hexagona
- Swamp ButtercupRanunculus hispidus var. nitidus
- Drooping BulrushScirpus lineatus
Salt and brackish marshes
Birds 92
- Marbled GodwitLimosa fedoa
- Common TernSterna hirundo
- Short-billed DowitcherLimnodromus griseus
- Wilson's PloverCharadrius wilsonia
- Blue-headed VireoVireo solitarius
- Greater ScaupAythya marila
- Red KnotCalidris canutus
- SanderlingCalidris alba
- Sandwich TernThalasseus sandvicensis
- Seaside SparrowAmmodramus maritimus
- Gull-billed TernGelochelidon nilotica
- Piping PloverCharadrius melodus
Plants 56
- Perennial Saltmarsh AsterSymphyotrichum tenuifolium
- Wand LoosestrifeLythrum lineare
- Sea OxeyeBorrichia frutescens
- Cyperus planifoliusCyperus planifolius
- Delta BulrushSchoenoplectus deltarum
- Olney's ThreesquareSchoenoplectus americanus
- Saltmarsh CordgrassSpartina alterniflora
- Whorled DropseedSporobolus pyramidatus
- ShoregrassDistichlis littoralis
- Perennial GlasswortSalicornia ambigua
- Godfrey's SpiderlilyHymenocallis godfreyi
- Smallfruit BeggarticksBidens mitis
Freshwater marshes
Birds 85
- Wilson's PloverCharadrius wilsonia
- Sandwich TernThalasseus sandvicensis
- Seaside SparrowAmmodramus maritimus
- Snail KiteRostrhamus sociabilis
- American FlamingoPhoenicopterus ruber
- American OystercatcherHaematopus palliatus
- Black SkimmerRynchops niger
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Royal TernThalasseus maximus
- Saltmarsh Sharp-tailed SparrowAmmodramus caudacutus
- Brown PelicanPelecanus occidentalis
- Eastern Brown PelicanPelecanus occidentalis carolinensis
Plants 251
- Florida Water AsterSymphyotrichum fontinale
- Nieuwland"s LoosestrifeLythrum nieuwlandii
- Rough WitchgrassDichanthelium leucothrix
- Cyperus articulatusCyperus articulatus
- California BulrushSchoenoplectus californicus
- Coast Cockspur-grassEchinochloa walteri
- Blue Water-hyssopBacopa caroliniana
- Tropical Water-hyssopBacopa innominata
- Squarestem SpikerushEleocharis quadrangulata
- Seashore SaltgrassDistichlis spicata
- Soapwort GentianGentiana saponaria
- Marsh Rose-gentianSabatia dodecandra
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


























































