2015 Mid-winter Bald Eagle Counts
View counts from: 2015 | 2014 | 2013 | 2012 | 2011 | 2010
Compared % Immatures Change in
Location Adult Sub-Adult Immature Unknown Total to 2014 of known age percentage
St. Croix River
  In Wisconsin 8 4 4 0 16 1 50.0% 16.7%
Wisconsin River
  Pettenwell to Ferry Bluff 21 1 16 1 39 -19 44.7% 43.3%
  South of Ferry Bluff 6 0 2 0 8 -34 25.0% -8.3%
Wisconsin River Subtotal 27 1 18 1 47 -52 41.3% 14.0%
Rock River/Pecatonica 57 3 37 22 119 -181 41.2% 8.8%
Illinois River
  Hennepin & North 17 2 8 5 32 -4 37.0% 17.0%
  Henry 0 0 0 0 0 0 -- 0.0%
  South to Peoria 141 2 38 181 102 22.1% -6.1%
  Peoria to Havana 169 8 83 2 262 102 35.0% 10.2%
  Havana to Beardstown 0 0 0 0 0 -19 -- 100.0%
  South to Grafton 13 0 1 1 15 -21 7.1% -9.6%
Illinois River Subtotal 340 12 130 8 490 146 29.5% 6.2%
Mississippi River
  Lock & Dam # 2 & 3 8 3 5 2 18 -5 50.0% 11.9%
  Lock & Dam # 4 & 5 28 1 1 0 30 0 6.7% -29.0%
  Lock & Dam # 5A & 6 4 0 1 0 5 -3 20.0% -20.0%
  Lock & Dam # 7 & 8 0 0 0 0 0 -8 -- 100.0%
  Lock & Dam # 9 & 10 19 0 2 1 22 22 9.5% 9.5%
  Inland 20 0 2 0 22 19 9.1% 9.1%
  Lock & Dam # 11 & 12 11 2 2 0 15 -33 26.7% 4.6%
  Sav. Army Depot & Iowa 28 3 11 1 43 6 33.3% 2.0%
  Lock & Dam # 13 25 0 1 0 26 -298 3.8% -13.8%
  Lock & Dam # 14 18 4 11 0 33 -101 45.5% 12.6%
  Lock & Dam #15 50 2 20 0 72 -3 30.6% -22.1%
  Lock & Dam #16 16 4 3 16 39 -140 30.4% 4.3%
  Lock & Dam # 17 6 0 2 0 8 -373 25.0% 13.5%
  Inland 16 6 2 0 24 -66 33.3% 12.2%
  Lock & Dam # 18 56 4 16 4 80 -287 26.3% 7.5%
  Lock & Dam # 19 20 0 4 1 25 -69 16.7% -13.0%
  Lock & Dam # 20 3 0 0 4 7 -165 0.0% -57.8%
  Lock & Dam # 21 & 22 4 0 4 2 10 -42 50.0% 33.9%
  Lock & Dam # 24 & 25 7 0 0 0 7 -17 0.0% -25.0%
  St. Louis and South 137 1 43 4 185 81 24.3% -4.1%
Miss. River Subtotal 476 30 130 35 671 -2299 25.2% 0.5%
Tennessee no results
Kentucky no results
Missouri River no results
Louisiana no results
2015 Grand Totals 908 50 319 66 1343 -2385 28.9% 3.6%
2014 Grand Totals 2700 180 733 115 3728 -179 25.3% 3.9%
2013 Grand Totals 2972 45 763 127 3907 1935 21.4% -4.7%
2012 Grand Totals 1381 69 419 103 1972 -70 26.1% -8.2%
2011 Grand Totals 1317 72 620 33 2042 475 34.4% 10.3
2010 Grand Totals 1134 56 304 73 1567 -1263 24.1% 2.9%
2009 Grand Totals 2192 97 491 50 2830 -1222 21.2% -2.4%