. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. Henslow's Sparrow, Ammodramus henslowii (Audubon) Nidiology RECORDS 13 nests representing 11 provincial regions. Breeds in hay fields, meadows, and pastures, all with characteristically tall growths of grasses, legumes, and other plants (Fig. 185). Several nests were reported in wet or damp areas, and 1 field contained some small, scattered shrubs. Nesting was usually in small, loose colonies of several pairs, and 1 nest was 61 m (200 ft) distant from another. Nests were well hidden in, and supported by, clumps of t
. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. Henslow's Sparrow, Ammodramus henslowii (Audubon) Nidiology RECORDS 13 nests representing 11 provincial regions. Breeds in hay fields, meadows, and pastures, all with characteristically tall growths of grasses, legumes, and other plants (Fig. 185). Several nests were reported in wet or damp areas, and 1 field contained some small, scattered shrubs. Nesting was usually in small, loose colonies of several pairs, and 1 nest was 61 m (200 ft) distant from another. Nests were well hidden in, and supported by, clumps of tall vegetation (often old and dead). Positions varied from ground level to a height of m ( ft). Nest structures were neat and substantial cups of grasses, lined with finer grasses. Six nests had outside diameters that ranged from 9 to 13 cm ( to inches), inside diameters from to 6 cm ( to inches), outside depths from 4 to cm ( to 3 inches), and inside depths from to 5 cm ( to 2 inches). EGGS 12 nests with 2 to 5 eggs; 2E (IN), 3E (2N), 4E (6N), 5E (3N). Average clutch range 4 eggs (6 nests). Cowbirdparasitism 12 nests with 1 parasitized (). INCUBATION PERIOD No information. EGG DATES 8 nests, 2 June to 14 August (10 dates); 4 nests, 7 June to 5 July. Breeding Distribution Henslow's Sparrow (Fig. 186B) is known to nest only in the agricultural areas of southern Ontario. Even in these regions a lack of suitable habitat and disturbances in nesting colonies have apparently almost eliminated this species as a breeding bird in the 223. 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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