Holiday Beach Migration Observatory Ontario, Canada Daily Raptor Counts: Oct 31, 2004 -------------------------------------------------------------------
Species Day's Count Month Total Season Total ------------------ ----------- -------------- -------------- Turkey Vulture 0 12682 13918 Osprey 0 14 83 Bald Eagle 0 15 45 Northern Harrier 0 61 248 Sharp-shinned Hawk 2 1651 5371 Cooper's Hawk 4 198 283 Northern Goshawk 1 5 5 Red-shouldered Hawk 0 148 154 Broad-winged Hawk 0 1 27843 Red-tailed Hawk 3 974 1192 Rough-legged Hawk 0 29 29 Golden Eagle 0 2 2 American Kestrel 0 148 1368 Merlin 0 25 58 Peregrine Falcon 0 5 15 Unknown 0 95 133 Total: 10 16053 50747 ---------------------------------------------------------------------- Observation start time: 07:00:00 Observation end time: 13:00:00 Total observation time: 6 hours Official Counter: Bob Hall-Brooks Observers: Visitors: Despite the weather our friends from Tennessee took the bite out of the wind. Weather: Strong SW winds, cold, damp, no sun, temperature of 11 degrees Celsius all day. Observations: Only ten raptors seen today highlighted by a close immature Northern Goshawk. Swirls of Starlings overhead early in the morning reminded me of Alfred Hitchcock's "The Birds", appropriate perhaps for Halloween. Predictions: The winds are supposed to turn tonight to the north. If the rain stays off, it could be good. ======================================================================== Report submitted by Bob Hall-Brooks ([EMAIL PROTECTED]) Holiday Beach Migration Observatory information may be found at: http://hbmo.org/ Holiday Beach Migration Observatory Information on southern Ontario's hawk migration and the Holiday Beach Conservation Area site ---------------------------------------------------------------------- Southwestern Ontario is largely an area of flat, featureless farmland. There are only two geographic features of note in the region. One is the proximity of the Great lakes, which influence bird migration in the area to a great extent, The second is the shape of the province, roughly funnel-shaped with the narrow end to the southwest. These features confine south-bound bird migrants, especially hawks, to specific flight corridors. Holiday Beach Conservation Area was formerly a Provincial Park, but is now administered by the Essex Region Conservation Authority (ERCA). It is strategically located at the extreme southwestern tip of southern Ontario. The park is on the eastern end of a large freshwater estuary known as Big Creek. (Specifically the site is 1.1 miles south of the junction Highway 20 (old 18) and Essex Road 50, Town of Amherstburg). The Holiday Beach Migration Observatory (HBMO) (founded in 1986) is a non-profit, volunteer organization formed to promote the study and protection of migrating birds. Activities focus primarily on fall migration of raptors and other species. This site is in Essex County, Ontario, on the north shore of Lake Erie near the Detroit River. In 1988, HBMO persuaded Detroit Edison to donate a 40 foot Hawk Tower which is now at the site. Southwestern Ontario has a funneling effect on migrating raptors due to the geography of the nearby lakes and the reluctance of most raptors to cross large bodies of water. Birds gain altitude over the flat farmland to the north and east, rising easily with the thermals that such areas provide in abundance. As the birds head south they meet Lake Erie and, reluctant to cross it , turn west. With appropriate wind and weather conditions, birds pile up along the lake shore and move west until they reach the narrow crossing at the Detroit River (or island hop within the river mouth).
