41
Published 2012
Conservation International

42
Published 2012
Conservation International

43
Published 2013
Conservation International

44
Published 2013
Conservation International

45
Published 2013
Conservation International

46
by James, Frances C.
Published 2009
American Ornithologists' Union

47
Published 2010
American Ornithologists' Union

48
Published 2010
American Ornithologists' Union

49
by Winker, Kevin
Published 2010
American Ornithologists' Union