Chapitre 1 : Origine et
évolution des oiseaux
http://creation.com/bird-evolution-flies-out-the-window
http://www.answersingenesis.org/tj/v17/i1/feathers.asp
http://www.thewildclassroom.com/biodiversity/birds/aviantopics/birdsystematics.html
http://membres.multimania.fr/listoiseauxmonde/cinfo.htm
http://birdguide.blogspot.com/