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| Photographer |
Yamil Saenz {K:12352}
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| Project |
#56 Wildlife and Insects
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Camera Model |
Canon EOS 20D
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| Categories |
From The Field
Nature
Wildlife
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Film Format |
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| Portfolio |
Steven's Creek Trail
Sparrows
Predators
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Lens |
Canon 400 F/4
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| Uploaded |
6/6/2007 |
Film / Memory Type |
Lexar 1GB
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ISO / Film Speed |
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| Views |
107 |
Shutter |
1/500
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| Favorites |
0
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Aperture |
f/6.8 |
| Critiques |
1 |
Rating |
Pending
/ 0 Ratings
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| Location |
City - Mountain View
State - CA
Country - United States
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| About |
Passer domesticus. #154
House Sparrows are not "sparrows" in the same sense as native North American species; they are members of the Old World family of weaver-finches. House Sparrows were introduced into the United States in the 1850's, ostensibly as part of a plan to control insect crop pests. Rather than alleviating human woes, they immediately began to exploit urban environments, a niche unoccupied by any native bird.
They appear to know little fear, and in a largely predator-free environment, their brazen foraging techniques and aggressive competitiveness serve them well. unfortunately, their aggressive behavior has helped them susceed in usurping territory from many native bird species.House Sparrows will nest in any bird box within practical flight distance from foraging sites, which often proves detrimental to populations of such cavity-nesting species as blue-birds and swallows.
Taken from" Birds of Northern California: by Fix and Bezener- 2000.
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Random Pictures By:
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