Hawk Like

Swainson's Hawk

Buteo swainsoni
Swainson's Hawk thumbnail
Length: 19 in. (48 cm )
Declining throughout its range, the Swainson\'s Hawk\'s dependence on open prairies and arid grasslands for its nesting and prey, such as small mammals, lizards and birds, may be related partially to changing agricultural practices and increasing disturbance of isolated nesting trees. This large, soaring hawk migrates 1000s of kilometers south to winter in the grasslands of northern Argentina. Here recent increases in uses of insecticides against marauding grasshoppers, the main food of Swainson\'s Hawks during the winter, may also be a contributing factor to its decline. Flocks of 10,000 or more individuals have been seen migrating high over head together in the Amazon. Some individuals are all black but most are brown and white.

The four-digit banding code is SWHA.



Bird Sound Type: Screeching
Sex of Bird: Male
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Bibliographic details:

  • Article: Swainson's Hawk
  • Author(s): Dr. Biology
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: July 13, 2017
  • Date accessed: April 17, 2024
  • Link: https://askabiologist.asu.edu/activities/bird/swainsons-hawk

APA Style

Dr. Biology. (2017, July 13). Swainson's Hawk. ASU - Ask A Biologist. Retrieved April 17, 2024 from https://askabiologist.asu.edu/activities/bird/swainsons-hawk

American Psychological Association. For more info, see http://owl.english.purdue.edu/owl/resource/560/10/

Chicago Manual of Style

Dr. Biology. "Swainson's Hawk". ASU - Ask A Biologist. 13 July, 2017. https://askabiologist.asu.edu/activities/bird/swainsons-hawk

MLA 2017 Style

Dr. Biology. "Swainson's Hawk". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. 17 Apr 2024. https://askabiologist.asu.edu/activities/bird/swainsons-hawk

Modern Language Association, 7th Ed. For more info, see http://owl.english.purdue.edu/owl/resource/747/08/
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