Red-Tailed Hawks Nesting on Human-Made and Natural Structures in Southeast Wisconsin

Stout, William E.; Anderson, Raymond K.; Papp, Joseph M.

doi:10.1016/b978-012100130-8/50012-2

Cited by 9 publications

(27 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We conducted Cooper's hawk nest surveys in conjunction with intensive annual nest surveys for red-tailed hawks (Buteo jamaicensis) and great horned owls (Bubo virginianus). We found all Cooper's hawk nests located during 1993-1995 incidentally during the intensive searches for red-tailed hawk and great horned owl nests that began in 1987 (Stout 2004;Stout et al 1996Stout et al , 1998Stout et al , 2006. We found no breeding Cooper's hawks from 1987 through 1992.…”

Section: Methodsmentioning

confidence: 65%

Nesting Biology of Urban Cooper's Hawks in Milwaukee, Wisconsin

Stout

Rosenfield

Holton³

et al. 2007

J Wildl Manag

Self Cite

View full text Add to dashboard Cite

Urban landscapes vary greatly across North America and long‐term data on the nesting biology of Cooper's hawks (Accipiter cooperii) from a variety of urban environments will improve our understanding of these poorly studied populations. We studied Cooper's hawks nesting in the metropolitan Milwaukee area, Wisconsin, USA, over a 12‐year period, 1993–2004. Nesting success for 254 first nesting attempts averaged 64.6% with means of 2.27 young per laying pair and 3.53 young per successful pair. For 8 second nesting attempts (i.e., re‐nests), nesting success averaged 87.5% with means of 2.57 young per laying pair and 3.00 young per successful pair. Productivity for first nesting attempts did not vary over the 12‐year period, and productivity for re‐nests did not differ from first nesting attempts. We documented evidence of nest predation by raccoons (Procyon lotor) and red‐tailed hawks (Buteo jamaicensis). On average, second year (SY [i.e., 1‐yr‐old]) Cooper's hawks comprised 14.6% (43 of 295 breeding birds; 21.5% [37 of 172] of F and 4.9% [6 of 123] of M) of the known breeding population. The percentage of SY breeders within this population declined over the 12‐year period, suggesting a relatively young population. Cooper's hawks consistently reoccupied nest sites annually after initial discovery over an estimated 2 generations of breeding adults, suggesting that population density for our study was at least stable. We trapped 105 breeding adults, including 5 natal dispersal birds. Based on long‐term, relatively high reproduction, repeated re‐occupancy of nest sites, and confirmed recruitment from within this population, we suggest that these nesting areas were not marginal or inferior habitats and that urban Cooper's hawks in this study area were not a sink population. We recommend no active management of this population at this time; however, additional information for nesting Cooper's hawks from other urban environs will expand our knowledge base for these populations.

show abstract

Section: Methodsmentioning

confidence: 65%

Nesting Biology of Urban Cooper's Hawks in Milwaukee, Wisconsin

Stout

Rosenfield

Holton³

et al. 2007

J Wildl Manag

Self Cite

View full text Add to dashboard Cite

show abstract

“…In contrast, the abundances of turkey vultures, red-tailed hawks, and accipiters at the FEWC in 2016 resembled levels measured in 2005, prior to wind farm construction. These three raptor species/groups have proven adaptable to other forms of human disturbance (Rosenfield et al 1996;Stout et al 1996) and may be more able to habituate to anthropogenic landscape changes.…”

Section: Discussionmentioning

confidence: 99%

A long‐term assessment of raptor displacement at a wind farm

Dohm

Jennelle

Garvin

et al. 2019

Frontiers in Ecol & Environ

View full text Add to dashboard Cite

Wind energy development is advancing rapidly, but the potential ramifications of this growth on wildlife, particularly birds and bats, are not fully understood. Wind energy development may affect raptor (birds of prey) populations indirectly by displacing them from their previously occupied habitat; however, there are limited empirical data demonstrating this effect. We performed long‐term raptor surveys at a wind farm previously implicated in the displacement of resident raptors and found that the duration of displacement varied among raptor species. Abundances of turkey vultures (Cathartes aura), red‐tailed hawks (Buteo jamaicensis), and accipiters (sharp‐shinned hawks [Accipiter striatus] and Cooper's hawks [Accipiter cooperii] combined) all rebounded in years 7 and 8 of wind farm operation, while the apparent displacement of northern harriers (Circus hudsonius) and American kestrels (Falco sparverius) persisted across all post‐construction monitoring periods. Our long‐term assessment indicates not only that wind farm construction and operation may displace raptors but also that these impacts can diminish over time for certain species. This finding underscores the importance of assessing potential impacts over the operational life of a given wind farm and the need for long‐term monitoring to validate predicted impacts, particularly for raptor communities.

show abstract

“…Wisconsin Stout et al (1996) Billboard (3) Osprey Utility towers Use of utility structures has increased with population growth along the Willamette River (OR) while use of natural structures has remained constant, 1976-1993 production equal Oregon Henny and Kaiser (1996) High use of towers in Canada and eastern US…”

Section: Speciesmentioning

confidence: 99%