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Situated less than a mile south of Lake Superior near the town of Copper Harbor, Brockway is the most northerly and prominent of a series of parallel ridges running along the spine of the Keweenaw. For hawks carried along the peninsula on southerly winds, it acts as a funnel for movement further toward Keweenaw Point, where most appear to turn around and come back down the Keweenaw Peninsula. This two-way flow of hawks past Brockway Mountain, and the viewing location at 1328 ft (726 ft above Lake Superior level) combine to produce two things very uncommon at hawk-watching locales: hawks migrating in two directions simultaneously, and eye level views of the birds! The Count Site is located at West Bluff overlook. | |
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| Name | Role | Email | Phone | | Skye Haas | Coordinator | KeweenawRaptorSurvey@gmail.com | |
The annual spring migration of raptors past Brockway Mountain has long been recognized, but remains little studied. The most detailed study to date was one conducted from 2 April-31 May 1992 by John Peacock (with an average of 6.8 hrs/day on 57 days). During this count he tallied 15033 eastbound and 7191 westbound raptors of 16 species, for an average of 263.7 raptors per day. The westbound birds, less than half the number of the eastbound, are most likely birds that have already been to the tip of the Keweenaw. An extended raptor survey is necessary to obtain a picture of the long-term pattern of migration, accounting for year to year variability. Data gained from this survey will contribute to the knowledge of raptor migration in the Lake Superior region, including the effects of possible climate change and lake-influenced weather patterns on raptors.
Keweenaw Raptor Survey is a joint project of Copper Country and Laughing Whitefish Audubon, with additional support from Michigan Audubon. This is a donation and grant funded project, so please visit our website and consider making a donation. Thank you!
The Keweenaw Peninsula is located on the shoreline of Lake Superior in Michigan’s Upper Peninsula. Brockway Mountain is located on the Keweenaw Fault and climbs to a height of 1,328 feet above sea level and 726 feet above the surface of Lake Superior.
Data Inventory (at hawkcount.org, as of May 14, 2012) |
| Data Summary | Data Years Click year links for year's data calendar | 3 years (238 days) of data saved:
2 years of hourly totals,
1 years of daily totals, and
0 years of mixed hourly/daily totals. | | |
| Color Key: | Hourly Totals | Daily Totals | Mixed Hourly/Daily |
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Hawkcount.org is a project of the Hawk Migration Association of North America.
To help support this project, please consider HMANA membership.
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