0065-1737 0065-1737 S0065-17372017000200181 Mexico 00 00 2017 00 00 2017 33 2 181 187

1997 59 955-6 2007 59 533-5 BirdLife International 2014 2003 58 83-5 2003 89 290–298 1927 140 367-75 1992 1 2014 1997 396-418 1977 63 707–712 1994 17 168–172 2001 223-8 1984 1999 1994 144-75 1995 2005 1964 8 420-7 1988 66 845-95 1988 66 2212–2222 1988 74 294–304 2013 4 55-8 2003 50 220–230 1974 6 67–76 2000 57 303–325 1989 1998 2002 33 335-41 1988 32 143-7 2006 1324 1-354 2007 27 54–60 1990 13 75-7 1993 29 250-60 1993 29 237-49 1994 111 328-36 2015 61 165–174 1977 13 376–382 2009 95 1035-9