Bird Milk Article describing how the young of some birds are fed on special secretions from their parents. http://www.stanford.edu/group/stanfordbirds/text/essays/Bird_Milk.html Stanford.edu~Site InfoWhoisTrace RouteRBL Check
Urban Birds Article discussing how birds have adapted to urban foraging amid the artificial concrete and steel ecosystems of cities. http://www.stanford.edu/group/stanfordbirds/text/essays/Urban_Birds.html Stanford.edu~Site InfoWhoisTrace RouteRBL Check
Beak Article describing the anatomy of this distinctive feature of birds which, in addition to eating, can be used for grooming, manipulating objects, killing prey, probing for food, courtship, and feeding the young. http://www.ipedia.net/information/Beak Ipedia.net~Site InfoWhoisTrace RouteRBL Check
Birdcall synthesis Article describing how birds use their syrinx, throat and beak to make a wide range of tones without the sophisticated muscle structure possessed by humans. http://www.obiwannabe.co.uk/tutorials/html/tutorial_birds.html Obiwannabe.co.uk~Site InfoWhoisTrace RouteRBL Check
The Atlas of Bird Migration Comprehensive article on the great challenge faced by long distance migrants which have to find their way to winter quarters and return to their breeding grounds in the spring. http://www.brownreference.com/php/PDFS/AN_Title_Information/457---Sample_Spreads.pdf Brownreference.com~Site InfoWhoisTrace RouteRBL Check
EcoBirds Behaviour Provides a series of bird articles covering nesting, song, migration and the curious habit of anting. http://birds.ecoport.org/Behaviour/EBbehaviour.htm Ecoport.org~Site InfoWhoisTrace RouteRBL Check
Sense of Direction Article from the Princeton Weekly Bulletin outlining how Biologist Martin Wikelski is helping to settle the long-standing debate over how migratory birds manage to navigate in darkness and bad weather. http://www.princeton.edu/pr/pwb/04/0503/1b.shtml Princeton.edu~Site InfoWhoisTrace RouteRBL Check
