Brown-Headed Cowbird
Molothrus ater
Cowbirds are well known nest parasites. It is thought by some theorist that it evolved this practice when it used to follow the great bison herd migrations that roamed freely from present day Mexico to Canada. To keep up with the migration, these birds would deposit their eggs in other bird’s nests. Their young develop much faster than that of their hosts, so the host’s offspring do not survive.
Brown-Headed Cowbird(Molothrus ater) |
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Description: Female along Rockhouse Truck Trail near Clark Lake in the Anza Borrego State Park. San Diego County, California. |
Date Taken: 2013:04:27 7:49 |
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Location:
Rockhouse Trail |
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Camera Information: NIKON D3X, 800 mm, f/8.0, 1/1000 |
File Name: D3X5100-BrownHeadedCowBird |
| © 2013 Jack Daynes, shadeTreeImaging.com |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Male along Rockhouse Truck Trail near Clark Lake in the Anza Borrego State Park. San Diego County, California. |
Date Taken: 2013:04:27 7:49 |
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Location:
Rockhouse Canyon |
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Camera Information: NIKON D3X, 800 mm, f/8.0, 1/400 |
File Name: D3X5108-BrownHeadedCowBird |
| © 2013 Jack Daynes, shadeTree-Imaging |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Male along Rockhouse Truck Trail near Clark Lake in the Anza Borrego State Park. San Diego County, California. |
Date Taken: 2013:04:27 7:52 |
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Location:
Rockhouse Trail |
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Camera Information: NIKON D3X, 800 mm, f/6.3, 1/2500 |
File Name: D3X5139-BrownHeadedCowBird |
| © 2013 Jack Daynes, shadeTreeImaging.com |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Female along Rockhouse Truck Trail near Clark Lake in the Anza Borrego State Park. San Diego County, California. |
Date Taken: 2013:04:27 7:54 |
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Location:
Rockhouse Canyon |
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Camera Information: NIKON D3X, 800 mm, f/6.3, 1/2000 |
File Name: D3X5147-BrownHeadedCowBird |
| © 2013 Jack Daynes, shadeTree-Imaging |
Brown-headed Cowbird(Molothrus ater) |
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Description: Female, near the feed lot outside of Red Rock, Arizona. |
Date Taken: 2008:11:29 13:13 |
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Camera Information: NIKON D2X, 800 mm, f/6.3, 1/350 |
File Name: jcd3049BrownHeadedCowBird |
| © 2008 Jack Daynes, shadeTree Imaging |
Brown-headed Cowbird(Molothrus ater) |
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Description: Juvenile bird at a Dairy Farm, Valley Center, San Diego County, California. |
Date Taken: 2004:10:13 12:46 |
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Camera Information: NIKON D1X, 800 mm, f/11.0, 1/500 |
File Name: JCD_1081BrownHeadedCowbird |
| © 2004 Jack Daynes, shadeTree Imaging |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Bear River Migratory Bird Refuge, 17 miles west of Brigham City Utah. |
Date Taken: 2015:05:12 10:27 |
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Location:
Bear River |
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Camera Information: NIKON D3X, 800 mm, f/8.0, 1/1000 |
File Name: D3X1880-BrownHeadedCowBird |
| © 2015 Jack Daynes, shadeTreeImaging.com |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Bear River Migratory Bird Refuge, 17 miles west of Brigham City Utah. |
Date Taken: 2015:05:12 10:42 |
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Location:
Bear River |
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Camera Information: NIKON D3X, 800 mm, f/8.0, 1/3200 |
File Name: D3X1951-BrownHeadedCowBird |
| © 2015 Jack Daynes, shadeTreeImaging.com |
Brown-Headed Cowbird(Molothrus ater) |
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Description: Where feeders are in place at the Visitor Center, local critters can be readily observed. Malheur NWR Headquarters in eastern Oregon. |
Date Taken: 2015:06:02 17:44 |
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Location:
Visitor Center |
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Camera Information: NIKON D3X, 800 mm, f/7.1, 1/1600 |
File Name: D3X7008-BrownHeadedCowBird |
| © 2015 Jack Daynes, shadeTreeImaging.com |
Brown-Headed Cowbird(Molothrus ater) |
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Description: This Brown-Headed Cowbird male was looking to find a female so his genes would contribute to next generation of nest parasites. I drove for three plus hours to spend two lovely hours with these birds at the Cienega in Arivaca before turning onto my final leg of my homeward journey from my 2020 Texas adventure. |
Date Taken: 2020:05:27 9:29 |
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Location:
Arivaca Cienega |
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Camera Information: NIKON D5, 800 mm, f/8.0, 1/8000 |
File Name: BrownHeadedCowbird_D5X6330-Arivaca |
| © 2020 Jack Daynes, shadeTreeImaging.com |
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