. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. than the host's eggs. A large clutch of eggs due to cowbird parasitism may be more difficult to incubate efficiently and thus result in an increased incubation period. EGG DATES 2449 nests, 17 April to 5 August (2596 dates); 1225 nests, 28 May to 20 June. Some second nestings of Eastern Phoebe in the same nest were reported parasitized. Breeding Distribution The Brown-headed Cowbird breeds throughout southern Ontario. In northern Ontario it breeds in settled regions along the southern periphery but becomes rather sc
. Breeding birds of Ontario : nidiology and distribution. Birds; Birds; Birds. than the host's eggs. A large clutch of eggs due to cowbird parasitism may be more difficult to incubate efficiently and thus result in an increased incubation period. EGG DATES 2449 nests, 17 April to 5 August (2596 dates); 1225 nests, 28 May to 20 June. Some second nestings of Eastern Phoebe in the same nest were reported parasitized. Breeding Distribution The Brown-headed Cowbird breeds throughout southern Ontario. In northern Ontario it breeds in settled regions along the southern periphery but becomes rather scarce as far north as Pickle Lake and 267. 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, bookcollection, bookdecade1980, booksubjectbirds
