A small diving duck species native to North America, characterized by its distinctive black and white plumage and compact body size.
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Ecology & Habitat
Habitat
Boreal forests and wetlands across Canada and northern United States, preferring freshwater lakes, rivers, and coastal marine environments during winter migration.
Ecological Role
Plays a crucial role in aquatic ecosystem food webs, controlling insect and small aquatic invertebrate populations while serving as prey for larger predators.
Morphology
SKIN COATDense, water-resistant plumage with distinct sexual dimorphism in coloration, featuring white and black patterns for camouflage and thermal regulation.
LIMBS WINGSShort, powerful wings adapted for rapid flight and underwater propulsion; webbed feet optimized for efficient aquatic locomotion.
HEAD SENSORYLarge, rounded head with pronounced cranial bulge, enabling enhanced underwater vision and navigation during diving and foraging.
BODY STRUCTURECompact body, approximately 32-40 cm in length, weighing 250-500 grams, with a disproportionately large head relative to body size.
Data Source: TaxonHub Database
Image Credit: auburn
