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: They feed primarily by diving underwater to forage for aquatic insects, crustaceans, and mollusks. Their large feet act like paddles to propel them through deep lake waters.

: Because they rely on healthy aquatic ecosystems, their population health is often a key indicator of water quality and the abundance of invertebrates in their habitat.

Lesser Scaup Range - CWHR B094 [ds1429] * MAP. * HTML. * ArcGIS GeoServices REST API. * CSV. * ZIP. * GeoJSON. * KML. California Open Data (.gov) Dataset - California Open Data b_094.mp4

Lesser Scaup Range - CWHR B094 [ds1429] * MAP. * HTML. * ArcGIS GeoServices REST API. * CSV. * ZIP. * GeoJSON. * KML. California Open Data (.gov)

: Their nickname comes from their distinctive bluish-gray bills, which stand out against their dark heads and white flanks. : They feed primarily by diving underwater to

In regions like California, the Lesser Scaup relies on a variety of water bodies, ranging from freshwater lakes to coastal estuaries.

The Lesser Scaup is often mistaken for its cousin, the Greater Scaup, but it is slightly smaller with a more peaked head. These "bluebills," as hunters often call them, are renowned for their remarkable diving abilities and extensive migration patterns. Lesser Scaup Range - CWHR B094 [ds1429] * MAP

: They primarily breed in the boreal forests and parklands of Canada and Alaska, nesting in tall vegetation near water to hide from predators.