Trumpeter Swan
- Jan 01, 1987 - Tamarac National Wildlife Refuge
- Jan 01, 1988 - Swan Lake - Nicollet County
- Jul 02, 1989 - northwestern Wisconsin
- Jan 01, 1991 - Michigan
- Jan 01, 1993 - Various sites
- Jan 01, 1994 - Becker, Itasca, and St. Louis Counties
- Jan 01, 1994 - Ventura Marsh
- Jul 02, 1994 - upper Green River
- Jan 01, 1995 - Kettleson's WPA
- Jan 01, 1995 - Jim Foreman's
- Jan 01, 1996 - Kettleson's WPA
- Jan 01, 1996 - Union Slough NWR
- Jan 01, 1996 - Anderson Lake
- Jan 01, 1996 - Harold Brun's
- May 11, 1996 - Magee Marsh Wildlife Area
- Jul 02, 1996 - Spencer
- Nov 15, 1996 - Bear River Migratory Bird Refuge
- Jan 01, 1997 - Ventura Marsh
- Jan 01, 1997 - Kettleson's WPA
- Jan 01, 1997 - Lost Island Marsh
- Jan 01, 1997 - Eagle Lake
- Jan 01, 1998 - Kettleson's WPA
- Jan 01, 1998 - Jim Foreman's
- Jan 01, 1998 - Union Slough NWR
- Jan 01, 1998 - Spencer
- Jan 01, 1998 - Anderson Lake
- Jan 01, 1998 - Bill Colwell
- Jan 01, 1998 - Goose Lake
- Jan 01, 1998 - Bjorkboda Marsh
- Jan 01, 1998 - Cheever Lake
- Jan 01, 1998 - Cones Marsh
- Jan 01, 1998 - Don Holzer
- Jan 01, 1999 - Kettleson's WPA
- Jan 01, 1999 - Union Slough NWR
- Jan 01, 1999 - Green Island
- Jan 01, 1999 - Henry Bohlen
- Jan 01, 1999 - Union Hills
- Jan 01, 1999 - Myre Slough
- Jan 01, 1999 - East Twin
- Jan 01, 1999 - Mallard Marsh
- Jan 01, 2000 - Kettleson's WPA
- Jan 01, 2000 - Union Slough NWR
- Jan 01, 2000 - Bill Colwell
- Jan 01, 2000 - Goose Lake
- Jan 01, 2000 - Cheever Lake
- Jan 01, 2000 - Mallard Marsh
- Jan 01, 2000 - Cherokee County
- Jan 01, 2000 - Little Storm Lake
- Jan 01, 2000 - Four Mile WPA
- Jan 01, 2000 - Joice Slough
- Jan 01, 2000 - Lake Sugema
- Jan 01, 2000 - Muskrat Slough
- Jan 01, 2000 - Pickeral Lake
- Jan 01, 2000 - Pin Oaks Bottom
- Jan 01, 2000 - Rock Creek
- Jan 01, 2000 - Thorpe Park