Status: Rare casual fall visitor.
Documentation: Photograph: 11-15 Nov 2001 Lexington, Dawson Co (Jorgensen 2003).
Taxonomy: No subspecies are recognized.
Fall: There are three records:
ca 7 Oct-15 Nov 2001, immature male photographed Lexington (Jorgensen 2003)
5 Sep-23 Oct 2013, immature male photographed Lake McConaughy, Keith Co (Brogie 2014)
16 Sep-second week Oct 2010 photographed Gretna, Sarpy Co (Brogie 2017).
Comments: There are eight records for Colorado (CBRC 2017), four for Kansas (Thompson et al 2011), but none for South Dakota (Tallman et al 2002), Iowa (Iowa Ornithologists’ Union 2017), or Wyoming (Faulkner 2010). Of these 15 records for Kansas, Colorado, and Nebraska, 12 have occurred since 2000 and are scattered from May-Dec. Baltosser and Scott (2020) stated that “Since 1970, impressive record of vagrancy and sporadic occurrences in Pacific Northwest. … Fewer records of stray birds east of Arizona–New Mexico border than in Pacific Northwest.” Williamson (2001) commented “Much of its life remains a mystery, particularly its travels during the non-breeding season”.
CBRC: Colorado Bird Records Committee
Baltosser, W.H. and P.E. Scott. 2020. Costa’s Hummingbird (Calypte costae), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.coshum.01.
Brogie, M.A. 2014. 2013 (25th) Report of the NOU Records Committee. NBR 82: 131-146.
Brogie, M.A. 2017. 2016 (28th) Report of the NOU Records Committee. NBR 85: 128-142.
Colorado Bird Records Committee [CBRC]. 2017. Costa Hummingbird records. Colorado Bird Records Committee database, accessed 18 February 2018.
Faulkner, D.W. 2010. Birds of Wyoming. Roberts and Company, Greenwood Village, Colorado, USA.
Iowa Ornithologists’ Union. 2017. Costa’s Hummingbird records. Iowa Records Committee reports of Iowa rare bird records, accessed 21 February 2018.
Jorgensen, J.G. 2003. 2001 (13th) Report of the NOU Records Committee. NBR 71: 97-102.
Silcock, W.R. 2016. Fall Field Report, August-November 2016. NBR 84: 154-179.
Tallman, D.A., Swanson, D.L., and J.S. Palmer. 2002. Birds of South Dakota. Midstates/Quality Quick Print, Aberdeen, South Dakota, USA.
Thompson, M.C., C.A. Ely, B. Gress, C. Otte, S.T. Patti, D. Seibel, and E.A. Young. 2011. Birds of Kansas. University Press of Kansas, Lawrence, Kansas, USA.
Silcock, W.R., and J.G. Jorgensen. 2020. Costa’s Hummingbird (Calypte costae), Version 1.0. In Birds of Nebraska — Online. www.BirdsofNebraska.org