| Observer | Trips | Blocks | Hours | Entries | Species |
| *Bruce Ehresman | 1619 | 656 | 1,927 | 45,184 | 185 |
| *Stephen J. Dinsmore | 631 | 332 | 736 | 11,319 | 183 |
| *Tom Schilke | 305 | 136 | 725 | 7,328 | 138 |
| *Shane Patterson | 405 | 188 | 513 | 7,153 | 167 |
| *Walt Zuurdeeg | 135 | 82 | 401 | 1,284 | 123 |
| *Billy Reiter-Marolf | 394 | 288 | 386 | 10,293 | 159 |
| Jerry Von Ehwegen | 175 | 65 | 376 | 3,097 | 120 |
| *Tucker Lutter | 128 | 98 | 325 | 2,305 | 141 |
| *Jenni Dyar | 269 | 173 | 244 | 5,208 | 132 |
| Rita Goranson | 132 | 42 | 217 | 1,723 | 119 |
| *Karen Viste-Sparkman | 158 | 61 | 203 | 3,338 | 132 |
| Kirsten Winter | 123 | 64 | 197 | 3,709 | 122 |
| *Douglas Harr | 107 | 64 | 188 | 2,756 | 129 |
| *Michael Barrett | 64 | 21 | 160 | 2,372 | 139 |
| *Kristin Kuennen | 96 | 38 | 155 | 1,228 | 118 |
| *Tyler Harms | 87 | 71 | 150 | 1,435 | 131 |
| *Rachel Simmons | 27 | 23 | 149 | 1,076 | 99 |
| Paul Roisen | 79 | 40 | 148 | 1,900 | 147 |
| *Michael Sawyers | 147 | 29 | 142 | 1,404 | 127 |
| *Claudette Sandoval-Green | 53 | 47 | 140 | 355 | 84 |
| David Eastman | 67 | 37 | 137 | 1,551 | 111 |
| *Christopher Caster | 49 | 24 | 130 | 1,022 | 119 |
| Stuart Sparkman | 82 | 56 | 125 | 2,263 | 122 |
| William Scheible | 76 | 30 | 124 | 2,170 | 128 |
| Chris Edwards | 56 | 27 | 114 | 1,826 | 125 |
| *Katy Patterson | 72 | 43 | 114 | 2,073 | 118 |
| *Nichole Nagl | 89 | 70 | 109 | 1,772 | 112 |
| *Corey Lange | 38 | 32 | 107 | 1,327 | 111 |
| *Scott Schmidt | 38 | 6 | 102 | 256 | 84 |
| *Aaron Brees | 92 | 34 | 101 | 755 | 113 |
| Carolyn Fischer | 52 | 25 | 99 | 345 | 99 |
| Charles Winterwood | 53 | 19 | 87 | 926 | 105 |
| *Jay Gilliam | 75 | 36 | 79 | 1,021 | 124 |
| John Rutenbeck | 46 | 24 | 73 | 683 | 107 |
| Dennis Thompson | 50 | 44 | 70 | 1,361 | 106 |
| *Jacob Newton | 35 | 18 | 68 | 834 | 115 |
| Leo Schlunz | 83 | 28 | 63 | 328 | 95 |
| Danny Akers | 41 | 20 | 52 | 1,032 | 115 |
| *Jamie Balk | 16 | 14 | 51 | 554 | 87 |
| *Ann Johnson | 34 | 20 | 49 | 343 | 91 |
| Ellen Bell | 36 | 7 | 48 | 245 | 85 |
| *Ronald Lindblom | 24 | 5 | 44 | 197 | 100 |
| Dennis Carter | 14 | 8 | 42 | 423 | 84 |
| Mary Lou Petersen | 14 | 6 | 42 | 587 | 101 |
| Ray Cummins | 24 | 16 | 39 | 728 | 114 |
| Pat Fisher | 15 | 5 | 39 | 273 | 71 |
| Lee Schoenewe | 17 | 11 | 36 | 408 | 93 |
| Veronica Mecko | 22 | 16 | 36 | 323 | 79 |
| Mark Brown | 14 | 8 | 34 | 287 | 87 |
| Hank Zaletel | 55 | 10 | 32 | 267 | 87 |
| Renee Buck | 33 | 8 | 32 | 156 | 53 |
| Josh Obrecht | 50 | 34 | 32 | 662 | 82 |
| *Natalie Randall | 32 | 26 | 31 | 296 | 94 |
| Dennis Kirschbaum | 43 | 1 | 29 | 107 | 90 |
| Joseph Tollari | 10 | 3 | 28 | 120 | 50 |
| Jim Murdock | 15 | 15 | 27 | 326 | 68 |
| Anthony Sotelo | 12 | 8 | 24 | 286 | 75 |
| Jonathan Lautenbach | 7 | 6 | 23 | 257 | 98 |
| Paul Hertzel | 19 | 14 | 23 | 109 | 68 |
| Keith Dyche | 14 | 9 | 23 | 212 | 99 |
| Cory Gregory | 11 | 11 | 22 | 451 | 107 |
| Linda Rudolph | 12 | 10 | 21 | 380 | 84 |
| Elizabeth Partridge Blessington | 12 | 2 | 21 | 184 | 48 |
| Wolfgang Oesterreich | 132 | 2 | 20 | 1,022 | 117 |
| Reid Allen | 16 | 14 | 19 | 181 | 82 |
| Daniel Tiemeier | 10 | 6 | 19 | 232 | 86 |
| Stacy Beyer | 10 | 4 | 19 | 311 | 74 |
| Richard Sayles | 8 | 5 | 18 | 140 | 83 |
| Cathy McMullen | 25 | 2 | 17 | 67 | 49 |
| John Bissell | 15 | 6 | 17 | 153 | 79 |
| *Daryl Howell | 19 | 10 | 17 | 294 | 71 |
| Bery Engebretsen | 7 | 4 | 17 | 33 | 23 |
| Sarah Bissell | 5 | 4 | 16 | 181 | 72 |
| Michele Olson | 11 | 5 | 15 | 315 | 69 |
| Jaclyn Hill | 10 | 1 | 15 | 19 | 19 |
| Jon Stravers | 44 | 5 | 14 | 1,010 | 80 |
| Jennifer Belyeu | 7 | 5 | 14 | 17 | 14 |
| Sharon Somers | 17 | 3 | 14 | 98 | 48 |
| Austin Lambert | 28 | 2 | 14 | 56 | 45 |
| *Nick Smith | 19 | 7 | 13 | 355 | 85 |
| Miriam Patton | 2 | 1 | 13 | 37 | 27 |
| Thomas Johnson | 7 | 6 | 13 | 198 | 88 |
| Ken Lowder | 10 | 2 | 12 | 127 | 70 |
| Joseph Lautenbach | 8 | 4 | 12 | 191 | 75 |
| Rachel Hau Anderson | 4 | 1 | 11 | 172 | 112 |
| Rick Hollis | 29 | 4 | 11 | 109 | 66 |
| Torre Hovick | 4 | 3 | 11 | 81 | 58 |
| Jerry Probst | 2 | 2 | 11 | 40 | 34 |
| Gerald Denning | 4 | 3 | 10 | 85 | 50 |
| Karen Disbrow | 6 | 6 | 10 | 72 | 40 |
| Dave Fisher | 2 | 2 | 10 | 71 | 46 |
| Bill Eimermann | 12 | 2 | 9 | 189 | 49 |
| Karl Jungbluth | 8 | 1 | 9 | 56 | 45 |
| Russell Tabbert | 3 | 2 | 8 | 116 | 58 |
| Todd Von Ehwegen | 7 | 1 | 7 | 24 | 22 |
| Bill Huser | 1 | 1 | 7 | 56 | 56 |
| *Wayne Buchholtz | 3 | 1 | 7 | 51 | 36 |
| Tom Lawson | 3 | 3 | 7 | 72 | 67 |
| Anne Shaner | 1 | 1 | 7 | 53 | 53 |
| Stacie Young | 1 | 1 | 6 | 24 | 24 |
| Paul Skrade | 3 | 3 | 5 | 38 | 29 |
| Richard Trieff | 1 | 1 | 5 | 54 | 54 |
| Jim Durbin | 2 | 2 | 5 | 69 | 51 |
| Mike Johnston | 7 | 1 | 4 | 35 | 32 |
| Carol Berrier | 3 | 2 | 4 | 11 | 11 |
| Don Brown | 1 | 1 | 4 | 46 | 46 |
| Stephen Leese | 2 | 1 | 4 | 40 | 38 |
| Sheryl Poths | 16 | 1 | 4 | 57 | 35 |
| *Bridget Nixon | 35 | 35 | 3 | 31 | 1 |
| Anna Golightly | 7 | 2 | 3 | 15 | 11 |
| Candace Havely | 3 | 2 | 3 | 32 | 25 |
| *Adam Hanisch | 3 | 2 | 3 | 78 | 52 |
| Libbey Taylor | 1 | 1 | 3 | 1 | 1 |
| Bob Thorbrogger | 1 | 1 | 3 | 14 | 14 |
| Robert Vanersvelde | 1 | 1 | 3 | 9 | 9 |
| *Paul Frese | 3 | 3 | 3 | 52 | 38 |
| *Kristen Bredemeier | 1 | 1 | 3 | 52 | 51 |
| Steve Stucker | 1 | 1 | 3 | 50 | 50 |
| Harley Winfrey | 2 | 1 | 2 | 4 | 4 |
| Barbara Beaumont | 1 | 1 | 2 | 8 | 8 |
| Gary Erbes | 4 | 2 | 2 | 1 | 1 |
| Larry Reis | 1 | 1 | 2 | 3 | 3 |
| Thomas Rosburg | 1 | 1 | 2 | 6 | 6 |
| Brandon Templeton | 1 | 1 | 2 | 28 | 28 |
| Andrew Kellner | 3 | 2 | 2 | 65 | 41 |
| James Mason | 2 | 2 | 2 | 18 | 18 |
| Barry Buschelman | 2 | 1 | 2 | 2 | 2 |
| Marlene Ehresman | 1 | 1 | 2 | 9 | 9 |
| *Katy Reeder | 1 | 1 | 2 | 4 | 4 |
| *Dave Hoffman | 12 | 12 | 1 | 12 | 1 |
| Lyle Neher | 1 | 1 | 1 | 9 | 9 |
| Bill Bolton | 1 | 1 | 1 | 1 | 1 |
| Larry Dau | 1 | 1 | 1 | 1 | 1 |
| Matt Kenne | 10 | 4 | 1 | 25 | 18 |
| Craig Marshall | 1 | 1 | 1 | 14 | 14 |
| Tom Moon | 1 | 1 | 1 | 1 | 1 |
| Rex Rundquist | 1 | 1 | 1 | 15 | 15 |
| Jen Vogel | 10 | 1 | 1 | 12 | 12 |
| *Randy Robinson | 3 | 2 | 1 | 3 | 3 |
| *Guy Zenner | 7 | 7 | 1 | 8 | 4 |
| Darwin Koenig | 1 | 1 | 1 | 29 | 29 |
| Derek Bakken | 2 | 2 | 1 | 21 | 20 |
| James Dinsmore | 2 | 2 | 1 | 2 | 2 |
| Michael Schaeffer | 1 | 1 | 1 | 4 | 4 |
| Dan Dorrance | 2 | 2 | 1 | 26 | 21 |
| *Vince Evelsizer | 1 | 1 | 1 | 1 | 1 |
| Troy Kelsay | 1 | 1 | 1 | 3 | 3 |
| Lowell Washburn | 1 | 1 | 0 | 1 | 1 |
| *Matt Dollison | 1 | 1 | 0 | 1 | 1 |
| Brad Freidhof | 1 | 1 | 0 | 3 | 3 |
| Cheryl Groom | 1 | 1 | 0 | 1 | 1 |
| Zac Ripperger | 1 | 1 | 0 | 1 | 1 |
| Joe Wilkinson | 1 | 1 | 0 | 1 | 1 |