|
|
South Dakota bird life is highly diversified
due to varied habitats consisting of rivers, potholes, lakes,
ponds, riparian woodlands, man-made woodlands, sagebrush,
shrublands, croplands, haylands, Conservation Reserve Program
(CRP) planted cover, virgin mixed and tallgrass prairies and,
in western South Dakota, the Black Hills. South Dakota's midcontinental
geographic position constitutes a transition zone where both
western and eastern species occur (Tallman et al. 2002). The
southerly drift of northern species brings owls, longspurs,
sparrows and shorebirds. In addition, thousands of migrating
waterfowl and warblers pass through South Dakota in the spring
and fall.
In 1916, South Dakota's bird list consisted
of 320 species (Over and Thoms 1932). When additional records
were added in 1932 the list included 349 species and subspecies
of birds for the state. In 1991, due in part to taxonomic
changes as well as additional species in the state, the list
contained 395 species (SDOU 1991), 219 of which were known
to breed in South Dakota (Peterson 1995). Today, the list
has grown to 414 species (Tallman et al. 2002), mainly due
to documentation of new breeding species, such as Great-tailed
Grackles (Quiscalus mexicanus) (Swanson and Liknes 2001),
Virginia's Warblers (Vermivora virginiae) (Swanson et al.
2000) and Whip-poor-wills (Caprimulgus vociferus) (Dean et
al. 1995). Two exotic species that were rarely seen historically,
the Rock Dove (Columbia livia) and the European Starling (Sturnus
vulgaris) are now common throughout South Dakota (Tallman
et al. 2002).
Research has been conducted on some level in all habitats
in South Dakota. The following is a synthesis of much of this
research, including broad management recommendations proposed
by the authors and research needs.
|
|