Birds

Essay specific features

 

Issue:

Science

 

Written by:

Karen H

 

Date added:

August 24, 2011

 

Level:

College

 

Grade:

A

 

No of pages / words:

1 / 208

 

Was viewed:

6545 times

 

Rating of current essay:

 
Essay content:

Birds also have unique digestive and respiratory systems that are highly adapted for flight. Some birds, especially corvids and parrots, are among the most intelligent animal species; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations...
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Birds are social; they communicate using visual signals and through calls and songs, and participate in social behaviours including cooperative breeding and hunting, flocking, and mobbing of predators. The vast majority of bird species are socially monogamous, usually for one breeding season at a time, sometimes for years, but rarely for life...
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