Environmental Issues of Two Species of Parrots

[Wolf]

I ran across this article about Norfolk Island parrots for those of us interested in environmental issues concerning parrots http://phys.org/news/2014-09-norfolk-is ... arrot.html as well as another article about some highly endangered parrots in Brazihttp://phys.org/news/2014-08-popul ... ml#inlRlvl

[Pajarita]

The second link did not work for me. Is this the news you were posting about?
http://phys.org/news/2014-08-population ... razil.html

Also, on the first one, I want to point out the male/female ratio both before and after they started the program - as you can see, it was many more males than females before but, once they started the program, the ratio became even. This is typical of this type of situation. The mother bird determines the gender of the baby in the egg and, when conditions are not good, they produce more males than females (because males are expendable but not females) and, once the conditions improve, the ratio is pretty much even. This is another way of judging the husbandry of a breeder, if he/she gets more males than females, you know the birds are not been kept at good conditions and, if the ratio is even, you know the husbandry is good.

[Wolf]

Yes, your link is the right one for the second one that I posted. At least it is the same story. I also ran across an Audubon article showing a new revised version of birds family trees, you know the evolutionary tree. Any way I can't get the article that way but here is a link that covers what I read and more http://www.sciencemag.org/content/346/6215/1308 ,this was a special edition.
Perhaps a better way would be to look up Avian Phylogenomics Project , because only 8 of the papers were published in the special edition of Science, there are several more papers to the project published in different places.