Aythya collaris x marila Status: Rare casual fall migrant. Record: There are two records. The first was of one along the south Shore of Lewis and Clark Lake, Knox Co 11 Dec 2020 (Strand, eBird.org). The observer’s description reads: “Adult male. Scaup with clean pale whitish flanks and a contrasting black back, similar in size […]
Ring-necked Duck x Lesser Scaup (hybrid)
Aythya collaris x affinis Status: Rare casual spring migrant. Record: There are six records. 10 Mar 2022 Lake Ogallala, Keith Co (Mlodinow, eBird.org) 13-14 Mar 2023 North Platte, Lincoln Co (Manning, eBird.org) 21 Mar 2023 Lake McConaughy, Keith Co (Mlodinow, eBird.org) 1 Apr 2021 Gavin’s Point Dam in Knox Co (Strand, eBird.org) 7-26 Apr 2023 […]
Tufted Duck x Lesser Scaup (hybrid)
Aythya fuligula x affinis Status: Accidental in spring. Record: A first state record of this hybrid was photographed at Gavin’s Point Dam in Knox Co 13 Apr 2021 (Strand et al, eBird.org). Comments: Tufted Duck hybridizes with other species of Aythya (Carboneras and Kirwan 2020). There are numerous records shown in eBird (eBird.org, accessed Jun […]
Blue-winged Teal x Northern Shoveler (hybrid)
Spatula discors x clypeata Status: Accidental in spring. Documentation: Photograph: 17 May 2021 Antelope Co (M. Brogie, eBird.org). Comments: This is a known hybrid; Northern Shoveler hybridizes with a few other species, including Blue-winged Teal (Dubowy et al 2020). eBird (eBird.org, accessed Mar 2024) shows numerous records of this hybrid across the US, but only […]
[Swan x Graylag Goose] (hybrid)
Anser cygnoides x anser ANSER Status: No accepted records. Comments: There are reports from five locations, presumably of released or escaped hybrids from domestic stock. A flock of 12 appeared around 2008 at Fremont Lakes SRA, Dodge Co; three remained Nov 2015 and one female on 26 Feb 2021 (Charlotte Croshaw, personal communication; eBird.org). One […]
Mallard x Mexican Duck (hybrid)
ANAS platyrhynchos x diazi Status: Rare casual summer visitor Records: There are five records: 26 Apr 2023 Scotts Bluff Co (Mlodinow, eBird.org) 20 Jul 2013 photograph Clay Co (Paul Dunbar, personal communication) 30 Oct 2024 Cochran Lake, Scotts Bluff Co (Mlodinow, eBird.org) 12 Nov 2019 photograph Sioux Co (Mlodinow, eBird.org) 14 Dec 2021 Cochran Lake, […]