| Date | Location | Observers | Count | Percent Juveniles | Notes |
| Oct. 3 | Delta, B.C. | Richard Swanston | 4 | N/A | 1 |
| Oct. 14 | Izembek, AK | Tracy Schafer | 126,000 | N/A | 2 |
| Oct. 26 | Izembek, AK | Tracy Schafer | -- | N/A | 3 |
| Nov. 6 | Boundary Bay Delta B.C. |
Richard Swantson | 27 | N/A | 4 |
| Nov. 5 | Yaquina Bay, OR | David Pitkin | 33 | N/A | 5 |
| Nov. 7 | Cold Bay, AK | Tracy Schafer | yes | N/A | 6 |
| Nov. 7 | Morro Bay, CA | John Roser | 389 | N/A | 7 |
| Nov. 8 | Morro Bay, CA | John Roser | yes | N/A | 8 |
| Nov. 10 | San Quintin, Baja Calif. |
Hugo Martinez | 100 | N/A | 9 |
| Nov. 10 | Morro Bay, CA | John Roser | 698 | N/A | 10 |
| Nov. 12 | Cold Bay, AK | Tracy Schafer | yes | N/A | 11 |
| Nov. 12 | Delta, B.C. | Richard Swanston | 34 | N/A | 12 |
| Nov. 16 | Morro Bay, CA | John Chesnut John Roser |
640 | N/A | 13 |
| Nov. 18 | Guerrero Negro, Baja Calif. |
Grupo Las Brantas | yes | N/A | 14 |
| Nov. 18 | Delta, B.C. | Richard Swanston | 54 | N/A | 15 |
| Nov. 23 | Morro Bay, CA | John Roser | 1168 | N/A | 16 |
| Nov. 23 | Coos Bay, OR | Susan Hootman | 9 | N/A | 17 |
| Nov. 26 | Delta, B.C. | Richard Swanston | 72 | N/A | 18 |
| Nov. 21 | San Ignacio, Baja Calif. |
Club International Branta | 300 | N/A | 19 |
| Nov. 26 | Coos Bay, OR | Susan Hootman | 149 | N/A | 20 |
| Nov. 28 | Coos Bay, OR | Susan Hootman | 32 | N/A | 21 |
| Nov. 30 | Coos Bay, OR | Mike Graybill | 160 | N/A | 22 |
| Nov. 30 | Delta, B.C. | Richard Swanston | 573 | N/A | 23 |
| Dec. 1 | Delta, B.C. | Richard Swanston | 438 | N/A | 24 |
| Dec. 1 | Padilla Bay, WA | Bay View School | 50+ | N/A | 25 |
| Dec. 2 | Yaquina Bay, OR | David Pitkin | 184 | N/A | 26 |
| Dec. 5, 1998 | Morro Bay, CA | John Roser | 2232 | N/A | 27 |
| December 8, 1998 | Padilla Bay, WA | Bay View School | 175 | N/A | 28 |
| December 15, 1998 | Padilla Bay, WA | Bay View School | 125 | N/A | 29 |
| December 17, 1998 | Izembek Lagoon, AK | Cold Bay School | 12,000 | N/A | 30 |
| December 18, 1998 | OTHER | OTHER | 25,000 | N/A | 31 |
| January 5, 1998 | San Ignacio Lagoon, Baja Cal. | Club Internacional Branta | 1000+ | N/A | 32 |
| January 6, 1999 | Padilla Bay, WA | Bay View School | 880 | N/A | 33 |
| January 22, 1999 | Delta, B.C. | Richard Swanston | 250 | N/A | 34 |
| Jan 27, 1999 | Padilla Bay, WA | Bay View School | 250 | N/A | 35 |
| Jan. 23, 1999 | Estero la Bocana, Baja Cal. | Branta SudCalifornia P.A.E.B. | 277 | N/A | 36 |
| Jan. 30, 1999 | Padilla Bay, WA | Bay View School | 0 | N/A | 37 |
| Jan. 31, 1999 | Estero la Bocana, Baja Cal. | Branta SudCalifornia P.A.E.B. | 475 | N/A | 38 |
| Feb. 4, 1999 | Coos Bay, OR | Charleston Elementary School | 10 | N/A | 39 |
| Feb. 7, 1999 | Padilla Bay, WA | Bay View School | 98 | 15/83 | 40 |
| Feb.23 | Padilla Bay, WA | Bay View School | 280 | not determined | 41 |
| Mar. 2 | Padilla Bay, WA | Bay View School | 194 | N/A | 42 |
| Mar. 9 | Padilla Bay, WA | Bay View School | 85 | 15.3 % | 43 |
| Mar 14 | OTHER | OTHER | 250 | N/A | 44 |
| Mar 15 | OTHER | OTHER | 300 | N/A | 45 |
| Mar 22 | OTHER | OTHER | 50 | N/A | 46 |
| Mar. 14 | Coos Bay, OR | Charleston Elementary School | ~200 | ? | 47 |
| Mar.23 | Padilla Bay, WA | Bay View School | 700 | 2% | 48 |
| Mar 23 | OTHER | OTHER | 120 | N/A | 49 |
| Mar 24 | OTHER | OTHER | 225 | N/A | 50 |
| mar 26 | OTHER | OTHER | 200 | N/A | 51 |
| Mar 29 | OTHER | OTHER | 210 | N/A | 52 |
| Mar. 30 | Padilla Bay, WA | Bay View School | 188 | NA | 53 |
| Apr 2 | OTHER | OTHER | 1600+ | N/A | 54 |
| Apr. 2 | Coos Bay, OR | Charleston Elementary School | 200+ | ? | 55 |
| Apr. 13 | Padilla Bay, WA | Bay View School | 414 | n/a | 56 |
| Apr. 20 | Padilla Bay, WA | Bay View School | 500 | n/a | 57 |
| Aprl. 27 | Padilla Bay, WA | Bay View School | 3200 | n/a | 58 |
| Aprl. 29 | Padilla Bay, WA | Bay View School | 1350 | n/a | 59 |
| Aprl. 29 | Padilla Bay, WA | Bay View School | 1350 | n/a | 60 |
| May 4 | Padilla Bay, WA | Bay View School | 80 | n/a | 61 |
| May 6 | Padilla Bay, WA | Bay View School | 1075 | n/a | 62 |
| May 11 | Padilla Bay, WA | Bay View School | 329 | n/a | 63 |
| April 21, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 71 | n/a | 64 |
| April 21, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 70 | n/a | 65 |
| April 21, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 76 | n/a | 66 |
| April 21, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 89 | n/a | 67 |
| April 30, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 108 | n/a | 68 |
| April 30, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 31 | n/a | 69 |
| April 30, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 32 | n/a | 70 |
| April 30, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 43 | n/a | 71 |
| April 30, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 40 | n/a | 72 |
| May 18, 1999 | Qualicum Beach, B.C. | Qualicum Beach Middle School | 150 | n/a | 73 |
| May 20,99. | Delta, B.C. | Richard Swanston | 5 | 0 | 74 |
| May 27, 1999. | Delta, B.C. | Richard Swanston | 9 | N/A | 75 |
| May 11 | Padilla Bay, WA | Bay View School | 329 | n/a | 76 |
| may 18 | Padilla Bay, WA | Bay View School | 2892 | n/a | 77 |
| May 20 | Padilla Bay, WA | Bay View School | 2042 | n/a | 78 |
| Jun.11,99. | Delta, B.C. | Richard Swanston | 15 | N/A | 79 |