The highest density of locations was in northeastern and north-central Minnesota, but locations were scattered throughout the state. Minnesota Ornithologists’ Union Occasional Papers, no 2. Partners in Flight Bird Conservation Plan for The Boreal Hardwood Transition, Bird Conservation Region 12 — U.S. Robbins, Samuel D., Jr. 1991. The Least Flycatcher occurs in a wide variety of forest types, including upland and lowland deciduous forests, mixed deciduous-coniferous upland forests, mixed lowland swamp conifers, and patches of forest in open agricultural and prairie groves (Bond 1957; Tarof and Briskie 2008). Portion. Click here to listen to the many sounds of a Least Flycatcher. Decalesta, David S. 1994. Population trend map for the Least Flycatcher in North America for 1966–2015 based on the federal Breeding Bird Survey (Sauer et al. They emphasized that management should include maintaining large contiguous forest tracts and minimizing disturbances. Sibley, D. A. In the winter, the Least Flycatcher migrates to Central America, so you will only find them in the Edmonton area from May until September. This could provide safety for inner territories as well as extra mating opportunities for all. The Least Flycatcher occurs in a wide variety of forest types, including upland and lowland deciduous forests, mixed deciduous-coniferous upland forests, mixed lowland swamp conifers, and patches of forest in open agricultural and prairie groves (Bond 1957; Tarof and Briskie 2008).Forested habitats with open understories are especially important (Breckinridge 1956). To identify the Least Flycatcher, look for these distinguishing features: Small size. Tarof, Scott A., Laurene M. Ratcliffe, Michael M. Kasumovic, and Peter T. Boag. Population Estimates Database. The Sibley Guide to Birds. Description: This small flycatcher is olive green above and whitish green below. The participants of the MNBBA recorded nesting activity in 43.3% (2,051 of 4,741) of the surveyed atlas blocks and 55.8% (1,305 of 2,337) of priority blocks. They prefer mid successional to mature deciduous forests with some shrubs and some open space in the understory. Nesting and reproduction: Males establish their small territories in highly dense clusters. “Measurements of the Habitat Niche of the Least Flycatcher.” Wilson Bulletin 68: 47–51. The Minnesota Biological Survey (MBS) included 1,627 breeding season locations in its detailed surveys of counties (Minnesota Department of Natural Resources 2016). The breeding range extends from northeastern Canada to the Atlantic coast, southward through the northern United States, New England, and along the Appalachians. In a summary of the Least Flycatcher in North America, Tarof and Briskie (2008) identified few changes in its distribution except for an expansion into Washington State since the late 1970s. http://www.partnersinflight.org/wp-content/uploads/2016/08/pif-continental-plan-final-spread-single.pdf, Sauer, John R., Daniel K. Niven, James E. Hines, David J. Ziolkowski Jr., Keith L. Pardieck, Jane E. Fallon, and William A. “Least Flycatcher (Empidonax minimus).” Minnesota Biological Survey: Breeding Bird Locations. The National Forest Bird (NFB) Monitoring Program in the four national forests of Minnesota and Wisconsin found high frequency of occurrence and abundance in oak forests followed by red pine, beech-maple-birch, upland hardwoods, and aspen-birch cover types, based on over 900 observations (Niemi et al.