A survey about bird songs

Je sollicite également une petite aide au sujet de ce petit essai :
I also read an article : “The original tweeter” (Steve Comor) in Vocable of January 2011.
The survey was conducted on the functioning of individual cells.
Birds sing and produce a complex variety of notes. The team has reproduced the sounds. The zebra finch is close relative of the Bengalese. Birds learn to sing by cultural transmission, such as humans. In the song, there is a syllable. The bird song differentiates males and females but the male usually produces most melodic songs.
I share the opinion expressed in this article because there have been other surveys done about it and their results are concrete. I’ve chosen this article because I like the topic. It's nice to know about animals life.
I have a Bengalese at home. I know that birds learn to sing, using syllables, just like humans.. I would like to know more about this article.

The act of choosing myself an article in English allowed me to realize that I had some knowledge. I’ve chosen a subject that I like. This article, I immediately liked it and I learn a little bit more in English !

Lots of thanks in advance !