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Latest Cowbird Stories

Birds Accept And Raise Brood Parasites’ Young For Fear Of Retaliation
2014-04-18 14:50:57

Max Planck Institute If a restaurant owner fails to pay the protection money demanded of him, he can expect his premises to be trashed. Warnings like these are seldom required, however, as fear of the consequences is enough to make restaurant owners pay up. Similarly, mafia-like behavior is observed in parasitic birds, which lay their eggs in other birds’ nests. If the host birds throw the cuckoo’s egg out, the brood parasites take their revenge by destroying the entire nest....

2013-05-02 12:12:11

Birds that can't identify high quality male songs change male, female flock-mate behavior Female cowbirds incapable of recognizing high-quality male songs can alter the behavior of flock-mates of either sex and disrupt overall social structure, according to research published May 1 in the open access journal PLOS ONE by Sarah Maguire and colleagues from the University of Pennsylvania. Individual traits can impact a social network even in cowbirds, but the impact of changing individual...

2012-05-03 09:43:47

In most species, females prefer the most intense courtship display males can muster, but a new study finds that female cowbirds actually prefer less intense displays. The full results are published May 2 in the open access journal PLoS ONE. The researchers, led by Adrian O'Loghlen of University of California Santa Barbara, write that males direct more intense wing-spreading displays toward other males as aggressive communicative signals. It appears, however, that while these signals may...

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2011-03-08 09:50:12

By Leeann Bright, University of Florida A University of Florida study demonstrates extinction's ripple effect through the animal kingdom, including how the demise of large mammals 20,000 years ago led to the disappearance of one species of cowbird. The study shows the trickle-down effect the loss of large mammals has on other species, and researchers say it is a lesson from the past that should be remembered when making conservation, game and land-use decisions today. "There's nothing worse...


Latest Cowbird Reference Libraries

0_cf8194b61b111db9ad3ef76d3f8fee65
2006-11-11 16:23:19

The Giant Cowbird, Molothrus oryzivorus, is a large perching bird of the family Icteridae. It breeds from southern Mexico south to northern Argentina, and on Trinidad and Tobago. It is found in open woodland and cultivated areas with large trees, but is also the only cowbird that is found in deep forest. The male Giant Cowbird is 14 inches long and weighs 6.35 ounces. The bird is shiny black with a long tail, long bill, small head and a neck ruff which is expanded in display. The female...

38_9f86a2c43cb531071886c196b09a85d6
2006-11-06 13:02:43

The Brown-headed Cowbird, Molothrus ater, is a small bird of the Icteridae family. They are residents to open and semi-open country across most of North America. They are permanent residents in the southern parts of their range. Northern birds migrate to the southern United States and Mexico. At one time, the Brown-headed Cowbird followed the bison herds across the prairies. Their numbers expanded with the clearing of forested areas and the introduction of new grazing animals by settlers...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'