Coastal Mid-Winter Index
The Mid-winter index is an aerial survey conducted around
December 13th or 14th in Texas every year in order to
count waterfowl species and observe population trends over time. Pilots and trained observers have been flying
the same predetermined transects in key wintering areas of the Texas Coast since
at least the early 1980’s. Details of the 2016 survey and past surveys can be
found on the TPWD website or by following this link: http://tpwd.texas.gov/huntwild/wild/game_management/waterfowl/
The survey consists of the following 4 zones in SE Texas.
Zone 1 is the upper coast southeast of Houston
Zone 2 is the mid-coast north of 59
Zone 3 is the mid-coast south of 59
Light Geese
Year | MWI Count |
1982 | 807,000 |
1983 | 821,000 |
1984 | 921,000 |
1985 | 672,000 |
1986 | 795,000 |
1987 | 621,000 |
1988 | 548,000 |
1989 | 602,000 |
1990 | 674,000 |
1991 | 831,000 |
1992 | 693,000 |
1993 | 903,000 |
1994 | 986,000 |
1995 | 721,000 |
1996 | 1,093,000 |
1997 | 826,000 |
1998 | 1,010,000 |
1999 | NR |
2000 | 964,000 |
2001 | 652,000 |
2002 | 535,000 |
2003 | 363,000 |
2004 | 469,000 |
2005 | 404,000 |
2006 | 399,000 |
2007 | 558,000 |
2008 | 299,000 |
2009 | 362,000 |
2010 | 431,000 |
2011 | 631,000 |
2012 | 253,000 |
2013 | 395,000 |
2014 | 196,000 |
2015 | 442,000 |
2016 | 254,000 |