Bird
Redhead
Aythya americana
A winter visitor to Florida, found in all 67 counties and 8 habitats.
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 67 counties
- Habitats
- 8

At a glance
- Group
- Birds
- Here
- Winter
- Nesting
- Not known to nest here
- Range
- All 67 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 Florida 8
Each habitat page lists the plants and wildlife also found there.

Coastal tidal marshes (salinity not stated)





Marshes along tidal rivers where the water is fresh but rises and falls with the tide.
Coastal marshes flooded by salty or brackish tides.
Other habitats in its models (9)
Land cover, or classes with no habitat page in Florida. Those recorded in Florida first, the rest by region.
Elsewhere in the South (3)
- Atlantic Coastal Plain Embayed Region Tidal Freshwater Marsh Winter.
- Atlantic Coastal Plain Embayed Region Tidal Salt and Brackish Marsh Winter.
- West Gulf Coastal Plain Seepage Swamp and Baygall 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 (4)
- East Gulf Coastal Plain Southern Depression Pondshore Winter.
- Open Water (Aquaculture) 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 39
- Drooping BulrushScirpus lineatus
- Rufous BulrushScirpus pendulus
- Spreading BulrushScirpus divaricatus
- Woolgrass BulrushScirpus cyperinus
- Catchfly CutgrassLeersia lenticularis
- Rice CutgrassLeersia oryzoides
- Southern CutgrassLeersia hexandra
- White CutgrassLeersia virginica
- Bunch CutgrassLeersia monandra
- 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
Plant genera in its diet records (15)
- Scirpus Seeds. 4 diet records. 4 native plants in Florida
- Chara Leaves. 3 diet records. 0 native plants in Florida
- Leersia Seeds. 3 diet records. 5 native plants in Florida
- Polygonum Seeds. 3 diet records. 10 native plants in Florida
- Potamogeton Flowers and leaves. 3 diet records. 10 native plants in Florida
- Stuckenia Seeds and leaves. 3 diet records. 1 native plant in Florida
- Glyceria Seeds. 2 diet records. 1 native plant in Florida
- Halodule Leaves and roots. 2 diet records. 1 native plant in Florida
- Ruppia Leaves and roots. 2 diet records. 1 native plant in Florida
- Zannichellia Leaves. 2 diet records. 1 native plant in Florida
- Alisma Seeds. 1 diet record. 0 native plants in Florida
- Beckmannia Seeds. 1 diet record. 0 native plants in Florida
- Hordeum Seeds. 1 diet record. 0 native plants in Florida
- Lemna Leaves. 1 diet record. 5 native plants in Florida
- Rhizoclonium 1 diet record. 0 native plants 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.
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
Freshwater tidal marshes
Birds 75
- Red KnotCalidris canutus
- Seaside SparrowAmmodramus maritimus
- Piping PloverCharadrius melodus
- KilldeerCharadrius vociferus
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Purple MartinProgne subis
- Saltmarsh Sharp-tailed SparrowAmmodramus caudacutus
- Glaucous GullLarus hyperboreus
- Red-throated LoonGavia stellata
- Brewer's BlackbirdEuphagus cyanocephalus
- Caspian TernHydroprogne caspia
- Common LoonGavia immer
Plants 21
- Saltmarsh Water-hempAmaranthus cannabinus
- Beaked SpikerushEleocharis rostellata
- Seashore MallowKosteletzkya pentacarpos
- Big CordgrassSpartina cynosuroides
- Coastal Water-hyssopBacopa monnieri
- Godfrey's SandwortSabulina paludicola
- Eastern GrasswortLilaeopsis chinensis
- Bushy SeedboxLudwigia alternifolia
- Fox SedgeCarex vulpinoidea
- Swamp DockRumex verticillatus
- St. Augustine GrassStenotaphrum secundatum
- Small-leaved Meadow-rueThalictrum macrostylum
Sources
- USGS Gap Analysis Project habitat models (2001)
- USGS GAP winter habitat model for Redhead 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



















































