. Birds in Kansas. Birds -- Kansas Identification. An immature Swainson's Hawk (Buteo swainsoni). Photograph by Roger Boyd. Swainson's Hawk Buteo swainsoni (Bonaparte) Status: Swainson's Hawk is a common transient and summer resident in the west that becomes less common eastward. Period of Occurrence: Swainson's Hawk is most abundant from early April through September. Johnston (1965) gives median ar- rival and departure dates of 12 April and 12 October, respec- tively. Extreme dates are 2 March (doubtful) through 2 November. Midwinter sight records are of doubtful credibility. Breeding: Nest
. Birds in Kansas. Birds -- Kansas Identification. An immature Swainson's Hawk (Buteo swainsoni). Photograph by Roger Boyd. Swainson's Hawk Buteo swainsoni (Bonaparte) Status: Swainson's Hawk is a common transient and summer resident in the west that becomes less common eastward. Period of Occurrence: Swainson's Hawk is most abundant from early April through September. Johnston (1965) gives median ar- rival and departure dates of 12 April and 12 October, respec- tively. Extreme dates are 2 March (doubtful) through 2 November. Midwinter sight records are of doubtful credibility. Breeding: Nest building begins within a few days of the spring arrival and proceeds rapidly. The peak of laying is in late April. Most nests are built 15 to 40 feet above ground in trees along roadsides, in open prairie, or in farmyards, often near houses; nests are less commonly built on rock outcrops and on the ground. They are constructed of sticks and large weed stems and may be quite loose and bulky. The two. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thompson, Max C; Ely, Charles A. (Charles Adelbert), 1933-. Lawrence, Kan. : University of Kansas, Museum of Natural History : Distributed by University Press of Kansas
Size: 2200px × 1135px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookcontributorharv
