Vireo gilvus Status: Common regular spring and fall migrant statewide. Common regular breeder east and east-central, uncommon west-central and west. Documentation: Specimen: UNSM ZM6789, 26 Apr 1901 Lancaster Co. Taxonomy: AOS split the former Warbling Vireo into two species based on a proposal by Cicero (2025) noting the two groups differ in several ways including […]
WESTERN WARBLING-VIREO
Vireo swainsoni brewsteri Status: Uncommon regular spring and fall migrant west. Rare casual breeder Sioux and Dawes Cos. Documentation: Specimen: UNSM ZM6788, 23 May 1900 Monroe Canyon, Sioux Co (brewsteri) (Bruner, handwritten annotation in his copy of Bruner 1896 in possession of WRS). Taxonomy: AOS split the former Warbling Vireo into two species based on […]
YELLOW-RUMPED WARBLER
Setophaga coronata Five subspecies are recognized (AviList 2025), three north of Mexico: hooveri of Alaska and northwestern Canada, wintering to western US and Central America, coronata of south-central and southeastern Canada to northeastern US, wintering through southern US to Central America and Caribbean, and auduboni of southwestern Canada and western US, wintering to western Honduras. […]
Gadwall x American Wigeon
Mareca strepera x americana Status: Accidental in spring. Records: The only record is of one at Scottsbluff WTP, Scotts Bluff Co 14 Mar 2022 (Mlodinow, eBird.org). The observer’s notes are: Long silver tertials and lack of long tail point to GADW rather than NOPI as non-AMWI parent. Also, note small white area in front of […]
Redhead x Greater Scaup
Aythya americana x marila Status: Accidental in fall. Taxonomy: Redhead is known to have hybridized with several North American Aythya in the wild, Canvasback, Lesser Scaup, Greater Scaup, and Ring-necked Duck (Woodin and Michot 2020). Record: One was identified as this hybrid and photographed at Lake Ogallala, Keith Co 18 Nov 2024 (Mlodinow, eBird.org). The […]
Gadwall x Northern Pintail (hybrid)
Mareca strepera x Anas acuta Status: Rare casual spring visitor statewide Records: The only record is of one at Mormon Canal, Knox Co 29 Mar 2024 (Tommy Childers, Joni Rauert; eBird.org). Comments: Including the Nebraska record, there are only four Great Plains records, the others one in western Minnesota and two in eastern Colorado, along […]