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National Park Service
U.S. Department of the Interior

NPSpecies - Park Species Profile


Aythya affinis
Lesser Scaup
Organ Pipe Cactus National Monument
			Record Status: Approved
Occurrence:	Present
Nativeness:	Native
Abundance:	Occasional

Scientific Name with Authority:		Aythya affinis (Eyton, 1838)
Park Preferred Common Name(s):		Lesser Scaup
Park Synonyms:

Taxonomic Hierarchy:		Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Order Anseriformes, Family Anatidae, Genus Aythya, Species Aythya affinis


Seasonality Tags:
Migratory


Threatened/Endangered Status:		SC
State Species of Concern Status:
Ozone-sensitive Status:
NatureServe Global Rank:		G5
NatureServe State Rank:		AZ: S5N
Evidence:		0 Observations, 0 Vouchers, 3 Data Store References, 0 External Links


Other Parks Where Species is Listed:
Amistad National Recreation Area	Anacostia Park
Apostle Islands National Lakeshore	Assateague Island National Seashore
Badlands National Park	Bandelier National Monument
Bering Land Bridge National Preserve	Big Bend National Park
Big Hole National Battlefield	Big Thicket National Preserve
Bighorn Canyon National Recreation Area	Biscayne National Park
Black Canyon of the Gunnison National Park	Blue Ridge Parkway
Bluestone National Scenic River	Bryce Canyon National Park
Buffalo National River	Cabrillo National Monument
Canaveral National Seashore	Canyonlands National Park
Cape Cod National Seashore	Cape Hatteras National Seashore
Cape Lookout National Seashore	Capitol Reef National Park
Carlsbad Caverns National Park	Channel Islands National Park
Chesapeake and Ohio Canal National Historical Park	Chickamauga and Chattanooga National Military Park
Colonial National Historical Park	Crater Lake National Park
Craters of the Moon National Monument and Preserve	Cumberland Island National Seashore
Curecanti National Recreation Area	Cuyahoga Valley National Park
Death Valley National Park	Delaware Water Gap National Recreation Area
Denali National Park and Preserve	Dinosaur National Monument
Dry Tortugas National Park	Ebey's Landing National Historical Reserve
Effigy Mounds National Monument	Everglades National Park
Fire Island National Seashore	Florissant Fossil Beds National Monument
Fort Circle Parks	Fort Pulaski National Monument
Fort Sumter National Historical Park	Fort Washington Park
Gates of the Arctic National Park and Preserve	Gateway National Recreation Area
Gauley River National Recreation Area	George Washington Birthplace National Monument
George Washington Memorial Parkway	Glacier Bay National Park and Preserve
Glacier National Park	Glen Canyon National Recreation Area
Golden Gate National Recreation Area	Grand Canyon National Park
Grand Portage National Monument	Grand Teton National Park
Grant-Kohrs Ranch National Historic Site	Great Falls Park
Great Sand Dunes National Park and Preserve	Great Smoky Mountains National Park
Gulf Islands National Seashore	Hagerman Fossil Beds National Monument
Harmony Hall	Homestead National Historical Park
Hopewell Culture National Historical Park	Indiana Dunes National Park
Isle Royale National Park	Jean Lafitte National Historical Park and Preserve
John Day Fossil Beds National Monument	Joshua Tree National Park
Kaloko-Honokohau National Historical Park	Katmai National Park and Preserve
Kenai Fjords National Park	Kenilworth Park and Aquatic Gardens
Klondike Gold Rush National Historical Park	Kobuk Valley National Park
Lake Clark National Park and Preserve	Lake Mead National Recreation Area
Lake Roosevelt National Recreation Area	Lassen Volcanic National Park
Lava Beds National Monument	Lewis and Clark National Historical Park
Lincoln Boyhood National Memorial	Mississippi National River and Recreation Areas
Missouri National Recreational River	Monocacy National Battlefield
Montezuma Castle National Monument	National Capital Parks-East
National Mall and Memorial Parks	New River Gorge National Park and Preserve
Ninety Six National Historic Site	Niobrara National Scenic River
North Cascades National Park	Olympic National Park
Oxon Cove Park and Oxon Hill Run	Ozark National Scenic Riverways
Padre Island National Seashore	Petersburg National Battlefield
Petrified Forest National Park	Pictured Rocks National Lakeshore
Pipestone National Monument	Piscataway Park
Point Reyes National Seashore	Presidio of San Francisco
Redwood National Park	Rocky Mountain National Park
Saint Croix National Scenic Riverway	San Antonio Missions National Historical Park
San Juan Island National Historical Park	Santa Monica Mountains National Recreation Area
Sequoia and Kings Canyon National Parks	Sitka National Historical Park
Sleeping Bear Dunes National Lakeshore	Tallgrass Prairie National Preserve
Timucuan Ecological and Historic Preserve	Tule Springs Fossil Beds National Monument
Tuzigoot National Monument	Valley Forge National Historical Park
Vicksburg National Military Park	Virgin Islands National Park
Voyageurs National Park	Whiskeytown National Recreation Area
Whitman Mission National Historic Site	Wind Cave National Park
Wrangell - St Elias National Park and Preserve	Yellowstone National Park
Yosemite National Park	Yukon-Charley Rivers National Preserve
Zion National Park


Last Modified Date:	12/2/2008

NPSpecies - The National Park Service biodiversity database. IRMA Portal version.https://irma.nps.gov/npspecies. Accessed 9/25/2025 11:59:59 AM

NatureServe Global Rank and State Rank

NatureServe. 2017. NatureServe Web Service. Arlington, VA. U.S.A. Available http://services.natureserve.org. Accessed: 12/4/2017. Updated quarterly.

This information is provided by NatureServe (www.natureserve.org) and its network of natural heritage member programs, a leading source of information about rare and endangered species, and threatened ecosystems.


Species Profile	Page 1 of 1	9/25/2025 11:59:59 AM

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