GigaScience: http://gigadb.org/dataset/101011
Wikipedia: http://en.wikipedia.org/wiki/Hoatzin
Encyclopedia of Life: http://eol.org/pages/914698/overview
Brief introduction: The Hoatzin (Opisthocomus hoazin (Müller, 1776)) is a pheasant-sized tropical bird found in swamps, forest and mangroves of the Amazon and Orinoco Delta in South America. It is known by other names, such as the Hoactzin, Canje Pheasant, or Stinkbird due to a strong smell from its ability to digest certain plants. It is notable for having chicks that possess claws on two of their wings, and for being one of the most difficult species to figure out its relationship in the bird family tree.
Related papers:
Zhang et al., Comparative Genomics Reveals Insights into Avian Genome Evolution and Adaptation. Science, (2014).
Jarvis et al., Whole Genome Analyses Resolve Early Branches in the Tree of Life of Modern Birds. Science, (2014).