Tyrannus vociferans vociferans Status: Fairly common regular spring and fall migrant west, rare casual central. Fairly common regular breeder west. Documentation: Specimen: UNSM 6360, 19 Sep 1919 Glen, Sioux Co. This specimen was stated by the collectors to have been taken 9 Sep (Mickel and Dawson 1920). Taxonomy: Recently, Chesser et al (2018) rearranged the […]
NORTHERN FLICKER
Colaptes auratus auratus, C. A. LUTEUS, C. a. cANESCENS Status: “yellow-shafted flicker”: Common spring and fall migrant east and central, uncommon west. Common breeder east and central, uncommon west (Pine Ridge, North and South Platte river valleys). Fairly common winter visitor east and central, uncommon west. “red-shafted flicker”: Common spring and fall migrant and winter visitor (altitudinal […]
WESTERN WOOD-PEWEE
COntopus sordidulus veliei Status: Common regular spring and fall migrant west, locally rare west central, rare casual elsewhere. Common regular breeder west, locally rare west central. Documentation: Specimen: UNSM ZM6396, 24 May 1900 Monroe Canyon, Sioux Co. Taxonomy: Four subspecies are recognized, two north of Mexico: saturatus from southeast Alaska to western Oregon, and veliei, […]
OLIVE-SIDED FLYCATCHER
Contopus cooperi cooperi Status: Uncommon regular spring and fall migrant east and west, rare central. Documentation: UNSM 6401, 14 Jun 1901 Warbonnet Canyon, Sioux Co. Taxonomy: AOU (1998) noted that this species was previously placed in the monotypic genus Nuttallornis, as N. borealis. Nuttallornis is now merged with Contopus, where the specific epithet cooperi has […]
PEREGRINE FALCON
Falco peregrinus anatum, F. p. tundrius Status: Uncommon regular spring and fall migrant statewide. Locally uncommon regular resident east, extirpated west. Rare casual winter visitor statewide. Documentation: Specimens: UNSM ZM7696 (anatum) 14 May 1915 Garden Co; UNSM ZM7695 (tundrius) 5 May 1935 near Stapleton, Logan Co. Taxonomy: There are 16-19 subspecies recognized world-wide, three of […]
AMERICAN THREE-TOED WOODPECKER
Picoides dorsalis dorsalis Status: Rare casual summer visitor west. Documentation: Specimen: UNSM ZM6345, 16 Jun 1916 Scotts Bluff Co (Swenk 1918). Taxonomy: Nearctic three-toed woodpeckers (Picoides dorsalis, American Three-toed Woodpecker, and P. arcticus, Black-backed Woodpecker) are split from the Palearctic species (P. tridactylus, Eurasian Three-toed Woodpecker) based on genetic and vocal differences (Banks et al 2003). American […]