This report is based primarily on published literature, symposia proceedings, and
unpublished management reports. Much of this information resulted from the tireless
work of independent researchers and volunteers. However, many of the goshawk
studies conducted in the Region should have a caveat attached to the data: All data
should be interpreted cautiously. Since many of the cited studies are unpublished,
written descriptions of study designs, methods, and analytical techniques are not always
available for critical analysis through peer review. No studies have been conducted on
a regional scale. Most were conducted in limited portions of one state and, except for
Rosenfield et al. (1996), the study locations were not randomly selected which limits the
inference value of the data for determining Region-wide trends. There are also
problems with small sample sizes, short study duration, and potential bias in nest
detection methods. Some of these items have been included rather than excluded with
the hope that by sharing as much information as possible, a better understanding of
goshawk biology will emerge. It is important to note that no regional inferences
should be drawn from these data. A potential outcome of this effort may be an
increased awareness of the lack of available information and the need for additional
Dick, Theodore; Plumpton, David.
Review of Information on the Status of the Northern Goshawk (Accipiter gentilis atricapillus) in the Western Great Lakes Region and Ontario.
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