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354 THROUGH THE MACKENZIE BASIN
exhibit a larger proportion of spotted ones than the latter,
while they average about 59 by 46.5 millimetres. This
species is not uncommon in British Columbia, where it undoubtedly
breeds. The Dominion Museum collection at Ottawa
contains but one specimen, taken at Agassiz, B. C., May
17th, 1889, by Mr. W. Spreadborough!
342. SW A I N S O N ' S H A W K — B u t e o swainsonii ( Bonap.).
On the 18th of June, 1885, a hawk of this species was
shot near Fort Chipewyan, Athabasca, and it was duly forwarded
to Dr. Bell. It has been met with at Great Slave
Lake, while in July, 1860, we discovered a nest thereof
which was built on a spruce tree along the banks of the
Onion River, an important tributary of the Lockhart River,
while the latter is the principal affluent of the Anderson
River. It contained two well- grown young. Both parents
were seen and the male was shot. They certainly made a
great ado in endeavouring to protect their offspring. In
June, 1865, another nest was found in the top crotch of a
tall spruce pine in a ravine some twenty miles south- east of
Fort Anderson. It contained but one egg, the contents of
which were found in a well- developed stage of incubation.
Mr. Raine states that this is a most useful bird to the farmer,
as it devours an immense number of gophers and mice.
Bendire states that " incubation lasts about twenty-eight
days, both sexes assisting, and the eggs, from three to
four, are deposited at intervals of about two days. In shape
they vary from a short ovate to an oval, and their shells are
rather smooth and close- grained. Their ground colour when
fresh is a very distinct greenish- white, which in course
of time fades into a dull yellow- white. When not closely
looked into many of this hawk's eggs appear to be unspotted,
but on careful examination, there are, in reality, very few
that are immaculate. The majority are more or less distinctly
spotted and blotched with different shades of brown,
such as burnt- umber, liver- brown, hazel, tawny, and of clay
Object Description
Description
| Title | Page 377 |
| OCR | 354 THROUGH THE MACKENZIE BASIN exhibit a larger proportion of spotted ones than the latter, while they average about 59 by 46.5 millimetres. This species is not uncommon in British Columbia, where it undoubtedly breeds. The Dominion Museum collection at Ottawa contains but one specimen, taken at Agassiz, B. C., May 17th, 1889, by Mr. W. Spreadborough! 342. SW A I N S O N ' S H A W K — B u t e o swainsonii ( Bonap.). On the 18th of June, 1885, a hawk of this species was shot near Fort Chipewyan, Athabasca, and it was duly forwarded to Dr. Bell. It has been met with at Great Slave Lake, while in July, 1860, we discovered a nest thereof which was built on a spruce tree along the banks of the Onion River, an important tributary of the Lockhart River, while the latter is the principal affluent of the Anderson River. It contained two well- grown young. Both parents were seen and the male was shot. They certainly made a great ado in endeavouring to protect their offspring. In June, 1865, another nest was found in the top crotch of a tall spruce pine in a ravine some twenty miles south- east of Fort Anderson. It contained but one egg, the contents of which were found in a well- developed stage of incubation. Mr. Raine states that this is a most useful bird to the farmer, as it devours an immense number of gophers and mice. Bendire states that " incubation lasts about twenty-eight days, both sexes assisting, and the eggs, from three to four, are deposited at intervals of about two days. In shape they vary from a short ovate to an oval, and their shells are rather smooth and close- grained. Their ground colour when fresh is a very distinct greenish- white, which in course of time fades into a dull yellow- white. When not closely looked into many of this hawk's eggs appear to be unspotted, but on careful examination, there are, in reality, very few that are immaculate. The majority are more or less distinctly spotted and blotched with different shades of brown, such as burnt- umber, liver- brown, hazel, tawny, and of clay |
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