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 Broad-winged Hawk

Status in Michigan
Common Transient

Early Spring Date

Late Fall Date
Note: Early and Late Dates are being researched.
Image Credits
Count totals in the NMB Databases for Broad-winged Hawk.

Use the links below to view the Broad-winged Hawk reports in the respective databases.
If there are zero sightings for a particular season, that database will return no results.

Active Database - Spring 2005
View Broad-winged Hawk sightings.
Broad-winged Hawk Archives Reports
Fall 2003 3497
Spring 2003 1256
Winter 02-03 0
Fall 2002 3206
Summer 2002 5
Spring 2002 298
Winter 01-02 1
Fall 2001 1560
Summer 2001 5
Spring 2001 2082
Winter 00-01 2
Fall 2000 115080
Summer 2000 6
Spring 2000 59
Winter 00-99 0
Fall 1999 570082
Spring/Summer 1999 10

NMB Database
Seasonal Percentage Graph
For: Broad-winged Hawk

Whitefish Point Bird Observatory
Active Database - Fall 2003
View Fall 2003 sightings.
Whitefish Point Bird Observatory Official Seasonal Count Summaries for the Broad-winged Hawk
Fall 1999-Spring 2002
Broad-winged Hawk
Note: Some species will not be present in the WPBO archives and will return no records.

Search "The Birds of Michigan" text.

Home - Foreword - Preface - Introduction - Hypothetical List - Literature Cited

Historical Text

Buteo platypterus platypterus (Vieillot)
Broad-winged Hawk
U.M.M.Z. Animal Diversity Reference

Transient, occasionally common along the Great Lakes migration routes. Summer resident, rare in the south, less rare in the north.

First authoritatively listed for Michigan by Gibbs (1879: 491).

This species is relatively inconspicuous, and it may well be more common than available records indicate.

SPRING.-Transients are reported chiefly from the latter half of April to the latter half of May.

Lower Peninsula.-In the Detroit area Swales (1903: 15; and notes) found this hawk a fairly abundant migrant, and J. Claire Wood (Burns, 1911: 188, 224-25) reported 200 to 300 at a time. Both there and in the Ann Arbor region, arrival has been reported in the latter part of April and in early May. Although large numbers are rare in the Ann Arbor region, Van Tyne and N. S. Potter, III, observed 24 (a single individual, a flock of 10, and a flock of 13) on April 26, 1942. In 1918 a few Broad-wings were seen migrating along the shore of Berrien County during the last few days of April and on May 9 (N. A. Wood, 1922: 13-14). At Sand Point, Huron County (1931 to 1933), they were occasional in April and common in the hawk flights of May, and specimens (U.M.M.Z.) were collected (D. W. Douglass). Several (U.M.M.Z.) were also taken during the hawk flights of the latter part of April and the first few days of May, 1937, on the Leelanau Peninsula, and at least 15 were seen April 29, 1937, at Cecil Bay, northern Emmet County (Blanchard and Nelson, MS of 1937).

Upper Peninsula.-Christofferson, at Blaney, Schoolcraft County, and Bryens, at McMillan, Luce County, have reported arrival in their areas in late April (very seldom before the 20th of the month) and in the first week of May; 20 (the maximum number at any one time for the district) passed over Blaney on April 25, 1939. At Whitefish Point, Chippewa County, throughout April and May, 1937, S. D. Knox saw only 1 Broad-wing (on April 29), but in 1936 Brodkorb reported a flock of 26 there on May 9. Several specimens (U.M.M.Z.) have been collected, and transients reported there until the middle of May (N. A. Wood, 1914: 63), and in 1930, as late as June 11 (Tyrrell, 1934: 25). They were common from May 1 to 6 in a great hawk flight in 1931 at Copper Harbor, Keweenaw Comity (N. A. Wood, 1933: 719).

SUMMER.-Nesting begins about the last week of April or in early May. Lower Peninsula.-Swales recorded the species in the Detroit area rather regularly throughout the summer, usually without breeding evidence; he gave, however, 1 definite record: a nest with eggs and a female taken at Highland Park, Wayne County, on April 29, 2023 (Swales, 1904c:69) . Other records from southeastern Michigan include: a nest with 3 eggs (U.M.M.Z.), April 19, 1895, and a nest, May 12, 2023 (N. A. Wood), both at Ann Arbor; a female on a nest in Jackson County, May 6, 2023 (Fargo). Gibbs (1884: 66) collected 2 eggs in Kalamazoo County on May 24, 1875. Three nearly hatched egg sets (U.M.M.Z.) were taken on May 31 and June 1, 1894, in Manlius Township, Allegan County; and a juvenile was secured in- the same county, according to a letter of August 16, 1939, from Durward L. Alien. D. L. Alien, C. T. Black, and Walkinshaw found a nest with eggs on May 19,1940, at Rose Lake, southeastern Clinton County; Herbert (1880:79) recorded a set taken at East Saginaw on May 6, 1880; and Ford (1927:116-17; and letters) has found the species breeding with some regularity in Brooks Township, Newaygo County (eggs were taken there on May 15,. 1926, and May 20, 2023). Nesting has been reported at Douglas Lake, Cheboygan County (N. A. Wood, Smith, and Gates, 1916: 10), and in Emmet County (Widmann, 1902: 233; Barrows, 1912: 281).

Upper Peninsula.-The species is seen fairly regularly all summer in the Upper Peninsula. Among breeding records are an egg set secured in Chippewa County, May 16, 2023( Burns, 1911: 188, 258), and a nest, with 2 young, observed by John L. George and R. L. Patterson on July 9, 1938, at Golden Lake, Iron County.

FALL.-Transients are reported principally from the last week in August to early October.

Upper Peninsula.-Several of the species were noted with a mass movement of small birds on Isle Roy ale on September 12, 2023 (Peet, 1909:349-50), and 3 were noted there on September 18, 2023 (N. A. Wood). S. S. Gregory, Jr. (1929: 176), has reported the species in the Huron Mountain region, Marquette County, until October 12. At Whitefish Point, Chippewa County, Fargo saw a flock of 27 migrating southward on August 23,1925. Bryens has noted the species regularly at McMillan, Luce County, through the second and third weeks of September. Christofferson has listed none at Blaney, Schoolcraft County, later than October 10 (1937).

Lower Peninsula.-In the extensive hawk flights of September, 1929, at Muskegon, 12 or more Broad-wings (U.M.M.Z.) were taken in late September (through September 27). At Wintergreen Lake, Kalamazoo County, the species was noted in 1940, from October 2 to 16 (Rysgaard, 1940: 20); but in the Ann Arbor region, only rarely have any Broad-wings been re- corded after September 25 (1901, U.M.M.Z.). About Detroit, migration is not pronounced, but in September, 6 or 7 have occasionally been observed in a day by J. Claire Wood (Burns, 1911: 237); Swales saw the species there regularly in the latter part of September, sometimes in early October, and once until October 24 (1897, 2 in Ecorse Township). In the Toledo-Erie marsh area, L. W. Campbell (1940: 187) has recorded the species as late as November 8 (1930).

Mueseum of Zoology, University of Michigan, No. 75
The Birds of Michigan
By: Norman A. Wood
University of Michigan Press
August 28, 2023

Digitized by: Keith F. Saylor
[email protected]

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