2014. Some of the highest associations were with oak forests, cropland, upland grasslands, and developed areas.A species largely dependent on fragmented landscapes, this ground forager requires open habitats for feeding. In the Chippewa, an average of five cowbirds were reported on 100-10 minute unlimited distance point counts from 1991 to 2010; in the Superior an average of less than one was reported (Despite their abundance, Brown-headed Cowbirds have declined since long-term monitoring by the BBS began in 1966. 2010. Relationship to humans. Minnesota is an owl-lover’s paradise, and the great gray owl (
“Regional Forest Fragmentation and the Nesting Success of Migratory Birds.” Rosenberg, Kenneth V., Judith A. Kennedy, Randy Dettmers, Robert P. Ford, Debra Reynolds, John D. Alexander, Carol J. Beardmore, Peter J. Blancher, Roxanne E. Bogart, Gregory S. Butcher, Alaine F. Camfield, Andrew Couturier, Dean W. Demarest, Wendy E. Easton, Jim J. Giocomo, Rebecca Hylton Keller, Anne E. Mini, Arvind O. Panjabi, David N. Pashley, Terrell D. Rich, Janet M. Ruth, Henning Stabins, Jessica Stanton, and Tom Will. 2007. Survey-wide they have demonstrated a statistically significant decline of 0.66% per year since 1966 (Few studies have examined the factors responsible for the changes in cowbird population numbers. Cowbirds and buffalo might not be as closely involved as we think. Waterfowl aren’t the only birds that enjoy the “land of 10,000 lakes,” and the black tern ( The Brown-headed Cowbird is a widespread and abundant breeding resident in Minnesota. Compare that to the European Starling at 8.5 inches long and the Crow at 17.5 inches long. Minnesota.
Females forgo building nests and instead put all their energy into producing eggs, sometimes more than three dozen a summer.
The female also searches for potential host nests as she perches in the tops of trees and shrubs, watching for the nest‑building activities of other birds in the surrounding areas (Other studies, however, have demonstrated that this simple metric (i.e., high forest cover yields low cowbird parasitism) is more complicated, depending on the landscape context. Occurrence: Common to abundant. For details see the Data Methods Section.Breeding distribution of the Brown-headed Cowbird in Minnesota based on the Breeding Bird Atlas (2009 – 2013).Summary statistics of observations by breeding status category for the Brown-headed Cowbird in Minnesota based on all blocks (each 5 km x 5 km) surveyed during the Breeding Bird Atlas (2009-2013).Summary statistics for the Brown-headed Cowbird observations by breeding status category for all blocks and priority blocks (each 5 km x 5 km) surveyed during the Minnesota Breeding Bird Atlas (2009-2013).Historically Brown-headed Cowbirds were restricted to the grasslands of central North America. Widely distributed across the Prairie Parklands, Tallgrass Aspen Parklands, and Eastern Broadleaf Forest Provinces, cowbirds were more sparsely distributed in the eastern and far northern counties of the Laurentian Mixed Forest Province.
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... Brown-headed Cowbirds (Icteridae: Molothrus ater) Juveniles Carl Barrentine : About Published on Aug 6, 2012.
not listed.
While only 250 species have been recorded in the state, many of the birds in Minnesota are boreal and Arctic specialties that are difficult, if not impossible, to see in more southern areas. Adults have a short finch-like bill and dark eyes. It was unmistakably a male B-H Cowbird in our yard eating seed from a feederA female Brown-headed Cowbird in a young sapling in The Big Stone Nation Wildlife Refuge.I have never seen this bird before and had to come to this site to figure out what it was.
Melissa Mayntz has been a birder and wild bird enthusiast for 30+ years. Minnesota may be known for its lakes, but its grasslands and prairies offer amazing birding opportunities as well, including the chance to see the greater prairie-chicken ( A similar pattern occurred decades earlier as cowbirds expanded east from their primary habitat in the Central Plains. Its spread has represented bad news for other songbirds: Cowbirds lay their eggs in nests of other birds. 1986. A stunning duck with a brilliant yellow eye, the aptly named common goldeneye (
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