2
by Rodrigues, Ana S. L.
Published 2003
Conservation International

3
Published 2007
Conservation International

4
Published 2007
Conservation International

5
Published 2007
Conservation International

6
Published 2007
Conservation International

7
Published 2006
American Ornithologists' Union

8
by Spear, Larry B.
Published 2007
American Ornithologists' Union

9
Published 2006
American Ornithologists' Union

10
Published 2007
American Ornithologists' Union

11
by Oates, John F.
Published 2004
Conservation International Wildlife Conservation Society

12
Published 2008
The American Society of Plant Biologists

13
by Askins, Robert A.
Published 2007
American Ornithologists' Union

14
by Apanius, Victor
Published 2008
American Ornithologists' Union

15
Published 2010
American Ornithologists' Union

16
by Brown, Charles Robert
Published 2011
American Ornithologists' Union

17
by Smith, N. Adam
Published 2011
American Ornithologists' Union

18
by VanderWerf, Eric A.
Published 2012
American Ornithologists' Union

19
Published 2012
American Ornithologists' Union

20
by Mathewson, Heather A.
Published 2013
American Ornithologists' Union