Holiday Beach Migration Observatory Ontario, Canada Daily Raptor Counts: Sep 26, 2004 -------------------------------------------------------------------
Species Day's Count Month Total Season Total ------------------ ----------- -------------- -------------- Turkey Vulture 186 611 611 Osprey 2 63 63 Bald Eagle 5 18 18 Northern Harrier 3 173 173 Sharp-shinned Hawk 63 2884 2884 Cooper's Hawk 6 71 71 Northern Goshawk 0 0 0 Red-shouldered Hawk 2 2 2 Broad-winged Hawk 10 27766 27766 Red-tailed Hawk 29 165 165 Rough-legged Hawk 0 0 0 Golden Eagle 0 0 0 American Kestrel 25 771 771 Merlin 1 31 31 Peregrine Falcon 1 8 8 Unknown 1 10 10 Total: 334 32573 32573 ---------------------------------------------------------------------- Observation start time: 06:00:00 Observation end time: 14:00:00 Total observation time: 8 hours Official Counter: Bob Hall-Brooks Observers: Visitors: Our thanks to Dan, Chuck, Karen and the many other visitors who made todays count so pleasant. Weather: Winds light from the North changed in the last hour to South West, a cool start became a hot finish. Observations: Twelve species seen today including an adult Peregrine Falcon who soared right over the Tower.Both Red-shouldered Hawks and Broad-winged Hawks were seen today. Five migrant Bald Eagles, all immature were seen in addition to the resident adults and immatures. Blue Jays everywhere with 40,000 counted from the Tower. Red-breasted Nuthatches, Red-headed Woodpeckers, Goldfinches and Cedar Waxwings were also on the move today. Passerine Bander Carl Pascoe demonstrated a White-throated Sparrow and a Northern Flicker at the Tower. A total of 217 passerines of twenty-eight different species were banded today. Predictions: The winds are supposed to revert to the North tonight. Monday 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).
