Congratulations to Sheela for publishing a large part of her PhD thesis in Science! This work, led by Sheela in close collaboration with Dr. Leo Campagna, combines whole genome sequencing with incredibly challenging field studies of mating behavior in two Sporophila seedeaters. It provides exciting evidence that the Iberá Seedeater likely arose through the reshuffling of genetic variation that already existed in other Sporophila and that it is reproductively isolated from a close relative. Congratulations to Sheela and all of her collaborators for an amazing piece of work!
To learn more about the study: 
This is a link to a perspective by Dr. Erich Jarvis
This is a link to a news item in Science with an excellent video about the work featuring Sheela!
This is a link to the CU Arts and Sciences Magazine article
This is a link to the Cornell Chronicle article
This is a link to the EruekAlert article
This is a link tot he article in Forbes
This is a link to the Economist article
This is a link to the All About Birds article