northern Illinois
October 9, 1983, Savanna, Carroll County (Betty Shaw) (IAB 208:32) (Bohlen 1989)
November 2, 1985, Savanna, Carroll County (Betty Shaw, Lee Johnson) (IBB 2:2:43)
November 3, 1984, Savanna, Carroll County (Betty Shaw) (IBB 1:2:13)
November 6, 1970, L&D 13, Whiteside County (Harry Shaw, Betty Shaw, Dr. Edward Greaves) (IAB 157:28) (Bohlen 1978)
November 24-25, 1990, Fulton, Whiteside County (Larry Jones, Louise Augustine) (IBB 7:2:47)
December 20, 1998, La Salle Lake, La Salle County (Cindy McKee, John McKee, Jim Hampson) (MJIB 8:3:111)
March 26-27, 1999, Pistakee Lake, Chain-O-Lakes SP, McHenry County (Dave Johnson, Bob Montgomery) (MJIB 8:4:147)
March 28, 1987, La Salle Lake, La Salle County (Pete Peterson, Mike Baum) (IORC 1987.039; PCP, MJB) (IBB 3:4:85) (IBB 5:1:4) (Bohlen 1989)
May 10-12, 2007, Johnson-Sauk Trail SRA, Henry County (Andy Sigler, Al Stokie) (MJIB 16:4:145)
central Illinois
October 17-19, 2004, Chautauqua NWR, Mason County (Kevin Richmond) (MJIB 14:2:67)
October 22-28, 1998, Lake Springfield, Sangamon County (David Bohlen, Myrna Deaton) (MJIB 8:2:68)
October 22 - November 3, 1976, Lake Springfield, Sangamon County (David Bohlen) (IAB 180:37) (AB 31:2:183) (Bohlen 1989)
October 25, 1989, Lake Springfield, Sangamon County (David Bohlen) (IBB 6:2:42)
October 25 - November 3, 1998, Lake Decatur, Macon County (Myrna Deaton) (MJIB 8:2:68)
October 25, 1998, Lake Decatur, Macon County (Myrna Deaton)
November 3, 1998, Lake Decatur, Macon County (Myrna Deaton)
October 26, 2002, Chautauqua NWR, Mason County (Kevin Richmond) (MJIB 12:2:69)
October 26-31, 1984, Lake Springfield, Sangamon County (David Bohlen) (IBB 1:2:13) (Bohlen 1989)
October 26, 1984, Lake Springfield, Sangamon County (3) (David Bohlen)
October 31, 1984, Lake Springfield, Sangamon County (David Bohlen)
October 27-28, 1997, Lake Decatur, Macon County (Richard Sandburg, Myrna Deaton) (MJIB 7:2:68)
October 29, 2000, Clinton Lake, DeWitt County (Bob Chapel) (MJIB 10:2:68)
October 30, 1996, Clinton Lake, DeWitt County (Bob Chapel) (IORC 1996.066; RTC) (MJIB 6:2:69) (MJIB 7:2:54)
October - November 25, 2001, Clinton Lake, DeWitt County (Bob Chapel) (MJIB 11:2:70)
October, 2001, Clinton Lake, DeWitt County (Bob Chapel)
November 11, 2001, Clinton Lake, DeWitt County (Bob Chapel)
November 25, 2001, Clinton Lake, DeWitt County (Bob Chapel)
November 4-27, 1999, Clinton Lake, DeWitt County (Keith McMullen) (MJIB 9:2:69)
November 4 - December 19, 1993, Lake Springfield, Sangamon County (David Bohlen) (MJIB 3:2:65) (MJIB 3:3:86-101) (MJIB 3:3:112)
November 5-15, 1989, Chautauqua NWR, Mason County (Kevin Richmond) (IBB 6:2:42)
November 8, 2003, Clinton Lake, DeWitt County (Travis Mahan, Myrna Deaton) (MJIB 13:2:66)
November 8-12, 1986, Clinton Lake, DeWitt County (Louise Augustine) (IORC 1986.145; JBM) (IBB 3:2:35) (IBB 5:1:4)
November 8, 1986, Clinton Lake, DeWitt County (2) (Louise Augustine)
November 12, 1986, Clinton Lake, DeWitt County (2) (Steve Bailey)
November 9, 1999, Chautauqua NWR, Mason County (Keith McMullen) (MJIB 9:2:69)
November 9-12, 1983, Lake Springfield, Sangamon County (David Bohlen) (IAB 208:32)
November 11, 1997, Clinton Lake, DeWitt County (Bob Chapel) (MJIB 7:2:68)
November 11-12, 1985, Lake Decatur, Macon County (Richard Sandburg, Richard Palmer) (IORC 1985.026; RDP) (IBB 4:3:59)
(IBB 2:2:43) (Bohlen 1989)
November 11-12, 1989, Clinton Lake, DeWitt County (Bob Chapel, Myrna Deaton, Richard Palmer) (IBB 6:2:42)
November 13, 1998, Clinton Lake, DeWitt County (2) (Bob Chapel) (MJIB 8:2:68)
November 15, 1895, Mississippi River at Gulfport, Henderson County (specimen - University of Iowa) (Dinsmore 1984) (Bohlen 1989)
November 16-17, 1980, Lake Springfield, Sangamon County (David Bohlen) (SR 27:2)
November 16-20, 2002, Lake Decatur, Macon County (Travis Mahan) (MJIB 12:2:69)
November 22-23, 1983, Spoon Lake, Knox County (Mike Baum) (SR 39:3) (IAB 208:32) (Bohlen 1989)
November 23-24, 1991, Lake Decatur, Macon County (Bob Chapel, Myrna Deaton) (MJIB 1:2:24)
November 26, 2005, Lake Springfield, Sangamon County (David Bohlen) (Bohlen, in manuscript)
November 28 - December 19, 1998, Gladstone, Henderson County (Adam Reyburn) (MJIB 8:2:68) (MJIB 8:3:111)
November 28, 1998, Gladstone, Henderson County (Adam Reyburn)
December 19, 1998, L&D 18, Henderson County (Adam Reyburn, Phil Reyburn)
December 3, 1983, Lake Vermilion, Vermilion County (Steve Bailey, Bob Schifo) (IAB 208:32)
December 19, 1998, Mississippi River at L&D 18, Henderson County (Adam Reyburn, Phil Reyburn) (MJIB 8:3:111)
January 1-2, 1995, Lake Vermilion, Vermilion County (Steve Bailey) (IORC 1995.001, SDB, ETC, RTC) (MJIB 7:2:54)
January 1, 1995, Lake Vermilion, Vermilion County (Steve Bailey) (MJIB 4:3:87-100) (MJIB 4:3:110)
January 2, 1995, Lake Vermilion, Vermilion County (Bob Chapel)
March 24, 2005, Lake Springfield, Sangamon County (David Bohlen) (MJIB 14:4:147)
March 26 - May 5, 2000, Lake Springfield, Sangamon County (David Bohlen) (MJIB 9:4:143)
March 26, 2000, Lake Springfield, Sangamon County (winter plumage) (David Bohlen)
April 10-12, 2000, Lake Springfield, Sangamon County (adult spring plumage) (David Bohlen)
May 5, 2000, Lake Springfield, Sangamon County (David Bohlen)
March 30 - April 4, 1992, Lake Decatur, Macon County (Richard Sandburg, Myrna Deaton, Richard Palmer) (MJIB 1:4:142)
March 30 - April 6, 1975, Champaign, Champaign County (Ray Boehmer) (IAB 174:32) (AB 29:3:697)
April 5, 2002, Spoon Lake, Knox County (Mike Baum) (MJIB 11:3:146)
April 9, 1987, Spring Lake CA, Tazewell County (Tom Pucelik) (IBB 3:4:85) Bohlen 1989)
April 13, 1989, Lake Springfield, Sangamon County (David Bohlen) (IBB 5:4:83)
April 13-14, 2001, Spoon Lake, Knox County (Mike Baum, Louise Augustine, Kevin Richmond) (MJIB 10:4:148)
April 16, 1974, Evergreen Lake, McLean County (3) (Dale Birkenholz) (IAB 170:18) (AB 28:4:807) (Bohlen 1978) (Bohlen 1989)
May 1, 1971, Chautauqua NWR, Mason County (David Bohlen) (AB 25:4:750) (Bohlen 1978) (Bohlen 1989)
southern Illinois
October 24-27, 1970, Mark Twain NWR, Calhoun County (Sally Vasse) (IAB 158:23) (AB 25:1:65) (Bohlen 1978)
October 26, 1972, Mississippi River at Alton, Madison County (Mildred Schaefer) (NN 44:11:122) (AB 27:1:67)
October 27, 1985, Rend Lake, Franklin County (Leroy Harrison) (IBB 2:2:43) (Robinson 1996)
October 28-29, 1989, Carlyle Lake, Clinton County (Louise Augustine, Myrna Deaton) (NN 61:10:82) (IBB 6:2:42)
October 28, 1989, Carlyle Lake, Clinton County (Louise Augustine, Myrna Deaton, George Barker, Terry Barker)
October 29, 1989, Carlyle Lake, Clinton County (WGNSS)
October 28 - December 1, 2007, Carlyle Lake, Clinton County (Dan Kassebaum)
October 28, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
November 3, 2007, Carlyle Lake, Clinton County (Connie Alwood, Dan Kassebaum)
November 4, 2007, Carlyle Lake, Clinton County (David Becher, Dan Kassebaum, Mark Seiffert)
November 10, 2007, Carlyle Lake, Clinton County (Mark Seiffert)
November 11, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Charlene Malone, Jim Malone)
November 12, 2007, Carlyle Lake, Clinton County (Keith McMullen, Mark Seiffert)
December 1, 2007, Carlyle Lake, Clinton County (3) (Dan Kassebaum)
October 30 - November 17, 1985, Carlyle Lake, Clinton County (Ron Goetz) (IORC 1985:034; RG) (IBB 4:3:59)
October 30, 1985, Carlyle Lake, Clinton County (Ron Goetz) (NN 57:10:86) (NN 58:1:90) (IBB 2:2:43)
November 17, 1985, Carlyle Lake, Clinton County (Todd Fink)
October 31, 1992, Carlyle Lake, Clinton County (Richard Palmer, Myrna Deaton) (MJIB 2:2:66)
October 31 - November 1, 1998, Carlyle Lake, Clinton County (David Becher) (NN 70:10:7) (MJIB 8:2:68)
October 31, 1998, Carlyle Lake, Clinton County (David Becher)
November 1, 1998, Carlyle Lake, Clinton County (Dan Kassebaum)
November 1, 1997, Mississippi River at Alton, Madison County (Bill Rowe) (MJIB 7:2:68)
November 2, 1984, Mississippi River at Alton, Madison County (Bill Rudden, Carmen Patterson) (IBB 1:2:13) (Bohlen 1989)
November 3, 2002, Carlyle Lake, Clinton County (Dan Kassebaum) (MJIB 12:2:69)
November 3-18, 2002, Rend Lake, Franklin County (Frank Bennett) (MJIB 12:2:69)
November 3, 2002, Rend Lake, Franklin County (Frank Bennett)
November 18, 2002, Rend Lake, Franklin County (Keith McMullen)
November 4, 1995, Carlyle Lake, Clinton County (Jean Cook) (NN 68:1:2)
November 4-5, 2006, Carlyle Lake, Clinton County (Bob Hughes) (MJIB 16:2:66)
November 4, 2006, Carlyle Lake, Clinton County (Bob Hughes, Bob Fisher, Doug Stotz, Dan Kassebaum, Dennis Jacobsen)
November 5, 2006, Carlyle Lake, Clinton County (Dan Kassebaum, Bob Hughes, Dave Johnson, Keith McMullen)
November 4-13, 1999, Carlyle Lake, Clinton County (Leroy Harrison) (NN 72:1:5) (MJIB 9:2:69)
November 4, 1999, Carlyle Lake, Clinton County (Leroy Harrison)
November 13, 1999, Carlyle Lake, Clinton County (Mike Thelan, Bill Rowe)
November 6, 1984, Horseshoe Lake SP, Madison County (Carmen Patterson) (IBB 1:2:13)
November 8, 1997, Carlyle Lake, Clinton County (Dan Kassebaum, Albert Seppi, George Barker, Terry Barker) (NN 70:1:8) (MJIB 7:2:68)
November 9, 2003, Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan) (MJIB 13:2:66)
November 10-11, 1984, Crab Orchard NWR, Williamson County (Todd Fink) (IBB 1:1:13) (AB 39:59) (Bohlen 1989) (Robinson 1996)
November 10 - December 15, 2001, Carlyle Lake, Clinton County (Bill Rowe) (MJIB 11:2:70) (MJIB 11:3:111)
November 10, 2001, Carlyle Lake, Clinton County (Bill Rowe)
December 15, 2001, Carlyle Lake, Clinton County (George Barker, Terry Barker)
November 11, 2008, Carlyle Lake, Clinton County (Dan Kassebaum)
November 11-12, 1970, Mississippi River at Alton, Madison County (Richard Anderson) (AB 25:1:65)
November 12, 1984, Carlyle Lake, Clinton County (Bill Rudden) (NN 57:1:5) (IBB 1:2:13)
November 12-23, 1996, Carlyle Lake, Clinton County (Dan Kassebaum) (IORC 1996.095; DMK) (NN 69:1:3) (MJIB 6:2:69) (MJIB 7:2:54)
November 12, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
November 14, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
November 16, 1996, Carlyle Lake, Clinton County (David Bohlen)
November 17, 1996, Carlyle Lake, Clinton County (WGNSS)
November 23, 1996, Carlyle Lake, Clinton County (George Barker, Terry Barker, Bill Rowe)
November 16, 1989, Carbondale, Jackson County (Bob Danley) (Robinson 1996)
November 17, 1985, Horseshoe Lake SP, Madison County (Viola Buchholtz) (IORC 1985.027; VB) (IBB 2:2:43) (IBB 4:3:59)
November 17, 1986, Carlyle Lake, Clinton County (Bill Rudden) (NN 59:1:12) (IBB 3:2:35)
November 18, 2005, Carlyle Lake, Clinton County (Joe Eades) (MJIB 15:2:65)
November 19-23, 1990, Crab Orchard NWR, Williamson County (Bob Danley, Doug Robinson) (IBB 7:2:47) (Robinson 1996)
November 20, 1976, Rend Lake, Franklin County (Mike Morrison) (IAB 180:37) (AB 31:2:183)
November 20, 1983, East Fork Lake, Richland County (Leroy Harrison) (IAB 208:32-33)
November 21, 1942, Frank Holten SP, St. Clair County (Alberta Bolinger, Wayne Short) (Wilhelm 1958) (Anderson and Bauer 1968)
November 21-22, 1999, Horseshoe Lake SP, Madison County (Frank Holmes) (MJIB 9:2:69)
November 21 - December 11, 2004, Carlyle Lake, Clinton County (Joe Eades) (MJIB 14:2:67) (MJIB 14:3:110)
November 21, 2004, Carlyle Lake, Clinton County (Joe Eades)
November 26, 2004, Carlyle Lake, Clinton County (David Becher, George Barker, Terry Barker)
November 28, 2004, Carlyle Lake, Clinton County (David Becher)
December 1, 2004, Carlyle Lake, Clinton County (Keith McMullen)
December 11, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
November 26, 1999, Rend Lake, Franklin County (Frank Bennett) (MJIB 9:2:69)
December 4, 1985, East Fork Lake, Richland County (Leroy Harrison) (IORC 1985.033; LH) (IBB 2:2:43) (IBB 4:3:59) (Bohlen 1989)
December 15, 1991, Rend Lake, Franklin County (Doug Robinson) (Robinson 1996)
December 15, 2001, Rend Lake, Franklin County (Dan Kassebaum, Frank Bennett) (MJIB 11:3:111)
January 29, 2000, Rend Lake, Franklin County (Dan Kassebaum, Keith McMullen, Frank Bennett) (MJIB 9:3:110)
February 26, 1994, Mississippi River at Alton, Madison County (WGNSS 1998)
March 1-3, 1994, Horseshoe Lake SP, Madison County (Keith McMullen) (MJIB 3:4:144) (WGNSS 1998)
March 3, 1994, Horseshoe Lake, Madison County (Keith McMullen)
March 11-12, 1988, Horseshoe Lake SP, Madison County (Bill Boesch, Viola Buchholtz, David Becher, Ron Goetz) (IORC 1988.024; RG) (IBB 6:1:10)
(IBB 4:4:83) (Bohlen 1989) (WGNSS 1995)
March 21, 1962, Frank Holten SP, St. Clair County (Richard Anderson) (Anderson and Bauer 1968) (WGNSS 1995, 1998)
March 25-26, 2000, Carlyle Lake, Clinton County (Frank Bennett, Dan Kassebaum, Keith McMullen) (NN 72:5:6) (MJIB 9:4:143)
March 25, 2000, Carlyle Lake, Clinton County (Frank Bennett, Dan Kassebaum, Keith McMullen)
March 26, 2000, Carlyle Lake, Clinton County (Dan Kassebaum, Charlene Malone, Jim Malone)
March 28, 2005, East Fork Lake, Richland County (Leroy Harrison) (MJIB 14:4:147)
March 29-31, 2003, Stephen A. Forbes State Park, Marion County (Tom May) (MJIB 12:4:147)
April 8, 1976, Horseshoe Lake SP, Madison County (Joe Eades) (IAB 178:26) (AB 30:4:847) (WGNSS 1995, 1998)
April 19, 2008, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
December 1, 2007 photo - Dan Kassebaum