Bird
Ruddy Duck
Oxyura jamaicensis
A winter visitor to Virginia, found in all 133 counties and cities and 9 habitats.
- Here
- Winter and on migration
- Nesting
- Not known to nest here
- Range
- All 133 counties and cities
- Habitats
- 9

At a glance
- Group
- Birds
- Here
- Winter and on migration
- Nesting
- Not known to nest here
- Range
- All 133 counties and cities
- Habitats
- 9
- Habitat models
- Winter
Where it lives
The places its habitat model includes. It is not found everywhere a habitat occurs.
Habitats in Virginia 9
Each habitat page lists the plants and wildlife also found there.
Open sand of beaches, dunes and the hollows between them.
Coastal tidal marshes (salinity not stated)
Tidal marshes of the Atlantic and Gulf coasts where the source does not say whether the water is fresh, brackish or salt. A stated salinity files the marsh under freshwater tidal marshes or salt and brackish marshes instead.
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.
Floodplain and bottomland forests
Forests on low ground beside rivers and streams that flood from time to time.
Marshes along tidal rivers where the water is fresh but rises and falls with the tide.
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 (20)
Land cover, or classes with no habitat page in Virginia. Those recorded in Virginia first, the rest by region.
Elsewhere in the South (10)
- Atlantic Coastal Plain Central Fresh-Oligohaline Tidal Marsh Winter.
- Atlantic Coastal Plain Central Salt and Brackish Tidal Marsh Winter.
- Atlantic Coastal Plain Indian River Lagoon Tidal Marsh Winter.
- Central Florida Herbaceous Pondshore Winter.
- Florida Big Bend Fresh-Oligohaline Tidal Marsh Winter.
- Florida Big Bend Salt-Brackish Tidal Marsh Winter.
- Floridian Highlands Freshwater Marsh Winter.
- Mississippi Sound Salt and Brackish Tidal Marsh Winter.
- South Florida Everglades Sawgrass Marsh Winter.
- South Florida Freshwater Slough and Gator Hole Winter.
Land cover and other classes (10)
- Atlantic Coastal Plain Clay-Based Carolina Bay Herbaceous Wetland Winter.
- East Gulf Coastal Plain Large River Floodplain Forest - Herbaceous Modifier Winter.
- East Gulf Coastal Plain Southern Depression Pondshore Winter.
- Eastern Great Plains Floodplain Systems Winter.
- Eastern Great Plains Wet Meadow, Prairie, and Marsh Winter.
- Open Water (Aquaculture) Winter.
- South-Central Interior Large Floodplain - Herbaceous Modifier Winter.
- Texas-Louisiana Coastal Prairie Slough Winter.
- Unconsolidated Shore Winter.
- Unconsolidated Shore (Lake/River/Pond) Winter.
Seasons in Virginia
- Migratory: does not nest here, in 82 of 133 counties and cities.
- Winter: does not nest here, in 67 of 133 counties and cities.
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 31
- Erect KnotweedPolygonum erectum
- Pleatleaf KnotweedPolygonum tenue
- Seabeach KnotweedPolygonum glaucum
- Fern PondweedPotamogeton robbinsii
- Flatstem PondweedPotamogeton zosteriformis
- Fries' PondweedPotamogeton friesii
- Hill's PondweedPotamogeton hillii
- Oakes' pondweedPotamogeton oakesianus
- Spiral Pondweed, Northern Snailseed PondweedPotamogeton spirillus
- Straightleaf PondweedPotamogeton strictifolius
- Clasping-leaf PondweedPotamogeton perfoliatus
- Illinois PondweedPotamogeton illinoensis
- Largeleaf PondweedPotamogeton amplifolius
- Longleaf PondweedPotamogeton nodosus
- Ribbonleaf PondweedPotamogeton epihydrus
- Small PondweedPotamogeton berchtoldii
- Snail-seed PondweedPotamogeton bicupulatus
- Spotted PondweedPotamogeton pulcher
- Tennessee Pond WeedPotamogeton tennesseensis
- Waterthread PondweedPotamogeton diversifolius
- Northeastern BulrushScirpus ancistrochaetus
- Dark-green BulrushScirpus atrovirens
- Drooping BulrushScirpus lineatus
- Georgia BulrushScirpus georgianus
Plant genera in its diet records (4)
- Crassula 1 diet record. 0 native plants in Virginia
- Polygonum Seeds. 1 diet record. 3 native plants in Virginia
- Potamogeton Seeds. 1 diet record. 17 native plants in Virginia
- Scirpus Seeds. 1 diet record. 11 native plants in Virginia
Also found in its main habitats
Its main habitats in 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.
Coastal dunes and beaches
Birds 108
- DovekieAlle alle
- Marbled GodwitLimosa fedoa
- Saltmarsh Sharp-tailed SparrowAmmodramus caudacutus
- Short-billed DowitcherLimnodromus griseus
- Wilson's PloverCharadrius wilsonia
- Great Black-backed GullLarus marinus
- Horned LarkEremophila alpestris
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Purple SandpiperCalidris maritima
- SanderlingCalidris alba
- Sandwich TernThalasseus sandvicensis
- Seaside SparrowAmmodramus maritimus
Plants 109
- Maritime ThoroughwortEupatorium maritimum
- Seabeach KnotweedPolygonum glaucum
- Northern BayberryMorella pensylvanica
- Seabeach AmaranthAmaranthus pumilus
- Northern Seaside SpurgeEuphorbia polygonifolia
- Southern Seaside SpurgeEuphorbia bombensis
- Mound-lily YuccaYucca gloriosa
- Largeleaf PennywortHydrocotyle bonariensis
- Rough American Barnyard GrassEchinochloa muricata var. muricata
- Northern Seabeach OrachAtriplex mucronata
- Dune Marsh-elderIva imbricata
- American SearocketCakile edentula
Disturbed and introduced wetlands
Birds 130
- Black TernChlidonias niger
- DickcisselSpiza americana
- BobolinkDolichonyx oryzivorus
- DovekieAlle alle
- Pine WarblerDendroica pinus
- Yellow-throated VireoVireo flavifrons
- Bachman's SparrowAimophila aestivalis
- Lincoln's SparrowMelospiza lincolnii
- Nelson's Sharp-tailed SparrowAmmodramus nelsoni
- Purple SandpiperCalidris maritima
- Sandwich TernThalasseus sandvicensis
- Thayer's GullLarus thayeri
Plants 24
- Slender FimbryFimbristylis autumnalis
- Purple SpikerushEleocharis atropurpurea
- Blue MistflowerConoclinium coelestinum
- False DaisyEclipta prostrata
- Intermediate Spike RushEleocharis intermedia
- Blunt Spike RushEleocharis obtusa
- Mid-Atlantic Flat-top GoldenrodEuthamia floribunda
- Bristly SedgeCarex comosa
- ChaffweedCentunculus minimus
- Shortbeak BeaksedgeRhynchospora nitens
- Sensitive FernOnoclea sensibilis
- AxilflowerMecardonia acuminata var. acuminata
Floodplain and bottomland forests
Birds 86
- Lincoln's SparrowMelospiza lincolnii
- Snowy OwlBubo scandiacus
- Willow FlycatcherEmpidonax traillii
- Brewer's BlackbirdEuphagus cyanocephalus
- Northern WaterthrushSeiurus noveboracensis
- GadwallAnas strepera
- Yellow-throated WarblerDendroica dominica
- Black-throated Blue WarblerDendroica caerulescens
- Glossy IbisPlegadis falcinellus
- Great CormorantPhalacrocorax carbo
- Least BitternIxobrychus exilis
- Louisiana WaterthrushSeiurus motacilla
Plants 381
- Elliott's BlueberryVaccinium elliottii
- Possumhaw HollyIlex decidua
- Cherrybark OakQuercus pagoda
- Appalachian Orange ConeflowerRudbeckia fulgida var. umbrosa
- Shagbark HickoryCarya ovata
- Southern Shagbark HickoryCarya carolinae-septentrionalis
- Spreading SedgeCarex laxiculmis
- Louisiana SedgeCarex louisianica
- Common Cup-plantSilphium perfoliatum
- Smooth Hedge-nettleStachys tenuifolia
- Virginia Cup-plantSilphium connatum
- Coville's PhaceliaPhacelia covillei
Sources
- USGS Gap Analysis Project habitat models (2001)
- USGS GAP winter habitat model for Ruddy Duck 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




























































