. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. Black-billed Magpie, Pica pica (Linnaeus) Nidiology RECORDS 5 nests representing 1 provincial region. Only 5 nests of the Black-billed Magpie have been found in Ontario, 1 each year since the first in 1980, and all of them in extreme western Ontario in Rainy River District. Four of the nests were found in willow scrub areas at the edge of farm fields, and 1 of these was at a marsh edge; all 4 were in willow trees. The fifth nest was in an aspen wood, in a trembling aspen. The willow tree nests were at heights of
. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. Black-billed Magpie, Pica pica (Linnaeus) Nidiology RECORDS 5 nests representing 1 provincial region. Only 5 nests of the Black-billed Magpie have been found in Ontario, 1 each year since the first in 1980, and all of them in extreme western Ontario in Rainy River District. Four of the nests were found in willow scrub areas at the edge of farm fields, and 1 of these was at a marsh edge; all 4 were in willow trees. The fifth nest was in an aspen wood, in a trembling aspen. The willow tree nests were at heights of , 3, 3, and 4 m (7, 10, and 13 ft). One nest was situated within 3 m (10 ft) of a previous year's nest, which was later occupied by Long-eared Owls. Three of the nests were balls of sticks with an interior mud cup and were placed in tangles of willow branches. One of them was lined with a few strands of grass. A fourth nest lacked a full dome and had an outside diameter of 46 cm (18 inches) and an outside depth of cm (12 inches). One of the nests was newly completed and empty when found on 23 April, another contained 7 eggs on 24 May, a third was newly completed and empty on 29 May, and a fourth had flying young on 6 July. Breeding Distribution The only location in the province where the Black-billed Magpie (Fig. 206B) is known to breed is in western Rainy River District. Birds were noted regularly in winter in this region for many years, but not until 1980 were summering birds and nests found (Lamey, 1981) and photographed by W. Wilson (ROM PR 1169-1170) to confirm its breeding status in 47. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Peck, George K; James, Ross, 1943-; Royal Ontario Museum. Toronto : Royal Ontario Museum
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Keywords: ., bookcentury1900, bookdecade19, bookleafnumber61, booksubjectbirds
