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Latest American sparrows Stories

Team Of Rivals Approach Used By Sparrows For Defending Territories
2014-02-26 11:08:05

A new study of territorial songs used by chipping sparrows to defend their turf reveals that males sometimes will form a "dear enemy" alliance with a weaker neighbor to prevent a stronger rival from moving in.

Researchers Show Invasive Sparrows Immune Cells Sharpen As They Spread
2013-11-20 13:39:25

Scientists unlock mysteries of invasive species by studying English sparrows which have spread to Kenya.

Young And Old Song Sparrows Experience Climate Change Differently
2013-08-12 15:52:50

What's good for adults is not always best for the young, and vice versa. At least that is the case with song sparrows and how they experience the effects of climate change

Robotic Swamp Sparrow Helps Understand Bird Aggression
2013-01-29 18:51:58

A new study has found male sparrows actually perform a little trash talk before engaging in a brawl to the death.

Song Is Louder For A Cuckolded Male
2012-08-24 09:11:04

Rock sparrows indicate their age and their reproductive success with their songs and react to infidelity with a higher song volume

Younger Birds Get No Respect
2012-02-09 04:01:34

When mature male white-crowned sparrows duel to win a mate or a nesting territory, a young bird just doesn't get much respect.

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2011-08-11 08:31:17

While singing the same songs as your neighbors may sound harmonious, research conducted at Queen’s University Biological Station (QUBS) suggests that song-sharing amongst song sparrow populations is actually an aggressive behavior, akin to flinging insults back and forth.

2009-05-21 15:34:07

A U.S.

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2009-03-04 08:57:38

The wide-open spaces of the Flint Hills may no longer provide a secure home on the range for several familiar grassland birds, according to research by a Kansas State University ecologist and her colleagues.

2009-01-12 08:47:31

Songbirds such as swamp sparrows appear to sing sophisticated, hard-to-produce songs in hostile situations, a U.S.


Latest American sparrows Reference Libraries

38_13b7afe0aeea9510948c142fc6ad68e5
2006-02-21 06:14:22

The Fox Sparrow (Passerella iliaca) is a large sparrow and the sole member of the genus Passerella. Adults of this bird are heavily spotted and streaked underneath. In eastern and northern birds, the upper parts, wings, rump and tail are rusty and the underparts are white with streaks rusty to dark brown. Western birds have dark brown upperparts and dark brown streaks underneath. In some regions, western birds may have grey on the head and back. Their breeding habitat is wooded areas...

38_17c6638ef7cbd8847da3eacceeeba795
2006-02-21 05:52:07

The Swamp Sparrow (Melospiza Georgiana) is a medium-sized sparrow with a slow monotone trill, slower than that of the Chipping Sparrow. Adults have streaked rusty and black upperparts with a grey breast, light belly and a white throat. They have a rust-colored cap and wings. Their face is grey with a dark line through the eye. They have a short bill and fairly long legs. Their breeding habitat consists of marshes (including salt marshes) across eastern North America and central Canada....

38_853b4f17c688f5ac5e6c396c7ca8f860
2006-02-21 04:56:27

The Lark Bunting (Calamospiza melanocorys) is a medium-sized sparrow and the sole member of the genus Calamospiza. This bird has a characteristic large pale bill and pale wing patch. During times of breeding sdult males are completely black, all except for their white wing patch. Females and juveniles are more sparrow-like in appearance with dark brown upperparts and white underparts, streaking on the back, breast and flanks. The wings are dark in color with brown on the edges. The...

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Word of the Day
bretelles
  • In dressmaking, straps running from the belt in front over the shoulders to the belt in the back, with more or less elaboration of trimming and outline. They usually broaden at the shoulder and narrow toward the waist.
The word 'bretelles' comes from a French word meaning 'braces'.