Status: Rare casual spring migrant west, accidental east. Rare regular fall migrant west and central.
Documentation: Specimen: UNSM ZM10557, 17 Sep 1911 Dawes Co (Zimmer 1945, Rosche 1982).
Taxonomy: No subspecies are recognized (Pyle 1997).
Spring: There are five records, including a single eastern record, a specimen UNSM ZM 10559, collected 14 May 1917 by Zimmer at Lincoln, Lancaster Co; it appears identical to the specimen (cited above) collected in 1911. Hammond’s Flycatcher breeds in Colorado and the few Nebraska spring records are likely spring overshoots.
11-12 May 1999 Scotts Bluff NM, Scotts Bluff Co (Jorgensen 2001)
13 May 2006 photographed Crescent Lake NWR, Garden Co
14 May 1917 specimen Lancaster Co (UNSM ZM10559)
24 May 2000 Oliver Reservoir, Kimball Co (Jorgensen 2002)
30 May 2009 Crescent Lake NWR.
Fall: Aug 25, 26, 26 <<<>>> Sep 22, 22, 23
A documented early record is of one netted 25 Aug 2001 at Wind Springs Ranch, Sioux Co. Latest documented records are 19 Sep 2002 juvenile Greenwood Cemetery, Sidney (Brogie 2003), 21 Sep 2013 Kimball Co (Brogie 2014), and 27 Sep 2018 in Lincoln Co (Edwards, eBird.org). Easterly were one banded at NNF Bessey, Thomas Co 3 Sep 2003 and another carefully studied at DLD State Wayside Area, Adams Co 2 Sep 1995 (Gubanyi 1996).
The specimen collected by Zimmer 17 Sep 1911 (cited above) was an adult male in fresh fall plumage (Zimmer 1945); the species is the only Empidonax flycatcher expected in Nebraska which molts into fresh brightly-colored plumage prior to fall migration. Tony Leukering (personal communication) found that about 20% of Empidonax flycatchers banded after 20 Aug at his station in eastern Colorado were Hammond’s; 56 birds banded 27 Aug-28 Sep included six adults (latest 19 Sep) and 50 juveniles.
NM: National Monument
NNF: Nebraska National Forest
NWR: National Wildlife Refuge
UNSM: University of Nebraska State Museum
Photograph (top) of a Hammond’s Flycatcher at Sowbelly Canyon, Sioux Co on 4 Sep 2016 by Michael Willison.
Brogie, M.A. 2003. 2002 (14th) Report of the NOU Records Committee. NBR 71: 136-142.
Brogie, M.A. 2014. 2013 (25th) Report of the NOU Records Committee. NBR 82: 131-146.
Gubanyi, J.G. 1996. 1995 (Seventh) Report of the NOU Records Committee. NBR 64: 132-138.
Jorgensen, J.G. 2001. 1999 (Eleventh) Report of the NOU Records Committee. NBR 69: 85-91.
Jorgensen, J.G. 2002. 2002 (sic; =2000). (12th) Report of the NOU Records Committee. NBR 70: 84-90.
Pyle, P. 1997. Identification Guide to North American Birds. Part I, Columbidae to Ploceidae. Slate Creek Press, Bolinas, California, USA.
Rosche, R.C. 1982. Birds of northwestern Nebraska and southwestern South Dakota, an annotated checklist. Cottonwood Press, Crawford, Nebraska, USA.
Zimmer, J.T. 1945. Hammond’s Flycatcher in Nebraska. NBR 13: 41.
Silcock, W.R., and J.G. Jorgensen. 2018. Hammond’s Flycatcher (Empidonax hammondii), Version 1.0. In Birds of Nebraska — Online. www.BirdsofNebraska.org