eiders
Soft down sources
Eiders are large sea ducks found in the northern hemisphere.
They produce a very soft down.
Of the shoreline
- tundraFrigid treeless biome
- arcticOf extreme northern cold
- shorelineLand-water boundary
- seashoreOcean's edge
estuary · rocky · intertidal · brackish · saltwater · subarctic · Iceland · Scandinavia
Quilted bed covering
- duvetFilled bed covering
- quiltStuffed, stitched bed covering
- pillowBedding for heads
- beddingMaterials covering a mattress
insulation · warmth · feathers · softness · fluffiness · filling · plush · cushioning
coastal
Of the shoreline
seashore · estuary · rocky · intertidal · brackish · saltwater · subarctic · Iceland · Scandinavia · Alaska
comforter
Quilted bed covering
bedding · insulation · warmth · feathers · softness · fluffiness · filling · plush · cushioning · luxury
waterfowl
Swimming birds collectively
- drakeMale waterfowl
- henFemale fowl
- spectacledWearing eyeglasses
diving · dabbling · plumage · bill · webbed · flock · raft · brood · ducklings · molt
migration
Movement to new territory
- flywaysAerial migration corridors
- overwinteringEnduring the cold months
- breedingReproductive cultivation of organisms
seasonal · flock · stopover · northward · southward · passage · return · congregation
- waterbirdsducks, auk, geese, bittern, swans
- Arctic SeasArctic Ocean, Bering Strait, sea ice, pack ice, ice floe