Breeding population estimates and standard errors (in thousands) for 10 species of ducks from 1955 - 2000.

From Waterfowl Population Status, 2000, U.S. Fish and Wildlife Service

Mallard

Gadwall

American Widgeon

Year

N

SE

N

SE

N

SE

1955

877.3

457.1

651.5

149.5

3216.8

297.8

1956

10452.7

461.8

772.6

142.4

3145

227.8

1957

9296.9

443.5

666.8

148.2

2919.8

291.5

1958

11234.2

555.6

502

89.6

2551.7

177.9

1959

9024.3

466.6

590

72.7

3787.7

339.2

1960

7371.7

354.1

784.1

68.4

2987.6

407

1961

7330

510.5

654.8

77.5

3048.3

319.9

1962

5535.9

426.9

905.1

87

1958.7

145.4

1963

6748.8

326.8

1055.3

89.5

1830.8

169.9

1964

6063.9

385.3

873.4

73.7

2589.6

259.7

1965

5131.7

274.8

1260.3

114.8

2301.1

189.4

1966

6731.9

311.4

1680.4

132.4

2318.4

139.2

1967

7509.5

338.2

1384.6

97.8

2325.5

136.2

1968

7089.2

340.8

1949

213.9

2298.6

156.1

1969

7531.6

280.2

1573.4

100.2

2941.4

168.6

1970

9985.9

617.2

1608.1

123.5

3469.9

318.5

1971

9416.4

459.5

1605.6

123

3272.9

186.2

1972

9265.5

363.9

1622.9

120.1

3200.1

194.1

1973

8079.2

377.5

1245.6

90.3

2877.9

197.4

1974

6880.2

351.8

1592.4

128.2

2672

159.3

1975

7726.9

344.1

1643.9

109

2778.3

192

1976

7933.6

337.4

1244.8

85.7

2505.2

152.7

1977

7397.1

381.8

1299

126.4

2575.1

185.9

1978

7425

307

1558

92.2

3282.4

208

1979

7883.4

327

1757.9

121

3106.5

198.2

1980

7706.5

307.2

1392.9

98.8

3595.5

213.2

1981

6409.7

308.4

1395.4

120

2946

173

1982

6408.5

302.2

1633.8

126.2

2458.7

167.3

1983

6456

286.9

1519.2

144.3

2636.2

181.4

1984

5415.3

258.4

1515

125

3002.2

174.2

1985

4960.9

234.7

1303

98.2

2050.7

143.7

1986

6124.2

241.6

1547.1

107.5

1736.5

109.9

1987

5789.8

217.9

1305.6

97.1

2012.5

134.3

1988

6369.3

310.3

1349.9

121.1

2211.1

139.1

1989

5645.4

244.1

1414.6

106.6

1972.9

106

1990

5452.4

238.6

1672.1

135.8

1860.1

108.3

1991

5444.6

205.6

1583.7

111.8

2254

139.5

1992

5976.1

241

2032.8

143.4

2208.4

131.9

1993

5708.3

208.9

1755.2

107.9

2053

109.3

1994

6980.1

282.8

2318.3

145.2

2382.2

130.3

1995

8269.4

287.5

2835.7

187.5

2614.5

136.3

1996

7941.3

262.9

2984

152.5

2271.7

125.4

1997

9939.7

308.5

3897.2

264.9

3117.6

161.6

1998

9640.4

301.6

3742.2

205.6

2857.7

145.3

1999

10805.7

344.5

3235.5

163.8

2920.1

185.5

2000

9470.2

290.2

3158.4

200.7

2733.1

138.8

Blue-winged teal

Nothern shoveler

Nothern pintail

Year

N

SE

N

SE

N

SE

1955

5305.2

567.6

1642.8

218.7

9775.1

656.1

1956

4997.6

527.6

1781.4

196.4

10373

694.4

1957

4299.5

467.3

1476.1

181.8

6606.9

493.4

1958

5456.6

483.7

1383.8

185.1

6037.9

447.9

1959

5099.3

332.7

1577.6

301.1

5872.7

371.6

1960

4293

294.3

1824.5

130.1

5722.2

323.2

1961

3655.3

298.7

1383

166.5

4218.2

496.2

1962

3011.1

209.8

1269

113.9

3623.5

243.1

1963

3723.6

323

1398.4

143.8

3846

255.6

1964

4020.6

320.4

1718.3

240.3

3291.2

239.4

1965

3594.5

270.4

1423.7

114.1

3591.9

221.9

1966

3733.2

233.6

2147

163.9

4811.9

265.6

1967

4491.5

305.7

2314.7

154.6

5277.7

341.9

1968

3462.5

389.1

1684.5

176.8

3489.4

244.6

1969

4138.6

239.5

2156.8

117.2

5903.9

296.2

1970

4861.8

372.3

2230.4

117.4

6392

396.7

1971

4610.2

322.8

2011.4

122.7

5847.2

368.1

1972

4278.5

230.5

2466.5

182.8

6979

364.5

1973

3332.5

220.3

1619

112.2

4356.2

267

1974

4976.2

394.6

2011.3

129.9

6598.2

345.8

1975

5885.4

337.4

1980.8

106.7

5900.4

267.3

1976

4744.7

294.5

1748.1

106.9

5475.6

299.2

1977

4462.8

328.4

1451.8

82.1

3926.1

246.8

1978

4498.6

293.3

1975.3

115.6

5108.2

267.8

1979

4875.9

297.6

2406.5

135.6

537601

274.4

1980

4895.1

295.6

1908.2

119.9

4508.1

228.6

1981

3720.6

242.1

2333.6

177.4

3479.5

260.5

1982

3657.6

203.7

2147.6

121.7

3708.8

226.6

1983

3366.5

197.2

1875.7

105.3

3510.6

178.1

1984

3979.3

267.6

1618.2

91.9

2964.8

166.8

1985

3502.4

246.3

1702.1

125.7

2515.5

143

1986

4478.8

237.1

2128.2

112

2739.7

152.1

1987

3528.7

220.2

1950.2

118.4

2628.3

159.4

1988

4011.1

290.4

1680.9

210.4

2005.5

164

1989

3125.3

229.8

1538.3

95.9

2111.9

181.3

1990

2776.4

178.7

1759.3

118.6

2256.6

183.3

1991

3763.7

270.8

1716.2

104.6

1803.4

131.3

1992

4333.1

263.2

1954.4

132.1

2098.1

161

1993

3192.9

205.6

2046.5

114.3

2053.4

124.2

1994

4616.2

259.2

2912

141.4

2972.3

188

1995

5140

253.3

2854.9

150.3

2757.9

177.6

1996

6407.4

353.9

3449

165.7

2735.9

147.5

1997

6124.3

330.7

4120.4

194

3558

194.2

1998

6398.8

332.3

3183.2

156.5

2520.6

136.8

1999

7149.5

364.5

3889.5

202.1

3057.9

230.5

2000

7431.4

425

3520.7

197.9

2907.6

170.5

Canvasback

Scaup

Green-winged teal

Year

N

SE

N

SE

N

SE

1955

589.3

87.8

5620.1

582.1

1807.2

291.5

1956

698.5

93.3

5994.1

434

1525.3

236.2

1957

626.1

94.7

5766.9

411.7

1102.9

161.2

1958

746.8

96.1

5350.4

355.1

1347.4

212.2

1959

488.7

50.6

7037.6

492.3

2653.4

459.3

1960

605.7

82.4

4868.6

362.5

1426.9

311

1961

435.3

65.7

5380

442.2

1729.3

251.5

1962

361.2

43.8

5286.1

426.4

722.9

117.6

1963

506.2

74.9

5438.4

357.9

1242.3

226.9

1964

643.6

126.9

5131.8

386.1

1561.3

244.7

1965

522.1

52.8

4640

411.2

1282

151

1966

663.1

78

4439.2

356.2

1617.3

173.6

1967

502.6

45.4

4927.7

456.1

1593.7

165.7

1968

563.7

101.3

4412.7

351.8

1430.9

146.6

1969

503.5

53.7

5139.8

378.5

1491

103.5

1970

580.1

90.4

5662.5

391.4

2182.5

137.7

1971

450.7

55.2

5143.3

333.8

1889.3

132.9

1972

425.9

46

7997

718

1948.2

185.8

1973

620.5

89.1

6257.4

523.1

1949.2

131.9

1974

512.8

56.8

5780.5

409.8

1864.5

131.2

1975

595.1

56.1

6460

486

1664.8

148.1

1976

614.4

70.1

5818.7

348.7

1547.5

134

1977

664

74.9

6260.2

362.8

1285.8

87.9

1978

373.2

41.5

5984.4

403

2174.2

219.1

1979

582

59.8

7657.9

548.6

2071.7

198.5

1980

734.6

83.8

6381.7

421.2

2049.9

140.7

1981

620.8

59.1

5990.9

414.2

1910.5

141.7

1982

513.3

50.9

5532

380.9

1535.7

140.2

1983

526.6

58.9

7173.8

494.9

1875

148

1984

530.1

60.1

7024.3

484.7

1408.2

91.5

1985

375.9

42.9

5098

333.1

1475.4

100.3

1986

438.3

41.5

5235.3

355.5

1674.9

136.1

1987

450.1

77.9

4862.7

303.8

2006.2

180.4

1988

435

40.2

4671.4

309.5

2060.8

188.3

1989

477.4

48.4

4342.1

291.3

1841.7

166.4

1990

539.3

60.3

4293.1

264.9

1789.5

172.7

1991

491.2

66.4

5254.9

364.9

1557.8

111.3

1992

481.5

97.3

4639.2

291.9

1773.1

123.7

1993

472.1

67.6

4080.1

249.4

1694.5

112.7

1994

525.6

71.1

4529

253.6

2108.4

152.2

1995

770.6

92.2

4446.4

277.6

2300.6

140.3

1996

848.5

118.3

4217.4

234.5

2499.5

153.4

1997

688.8

57.2

4112.3

224.2

2506.6

142.5

1998

685.9

63.8

3471.9

191.2

2087.3

138.9

1999

716

79.1

4411.7

227.9

2631

174.6

2000

706.8

81

4026.3

205.3

3193.5

200.1

Redhead

Year

N

SE

1955

539.9

98.9

1956

757.3

119.3

1957

509.1

95.7

1958

457.1

66.2

1959

498.8

55.5

1960

497.8

67

1961

323.3

38.8

1962

507.5

60

1963

413.4

61.9

1964

528.1

67.3

1965

599.3

77.7

1966

713.1

77.6

1967

735.7

79

1968

499.4

53.6

1969

633.2

53.6

1970

622.3

64.3

1971

534.4

57

1972

550.9

49.4

1973

500.8

57.7

1974

626.3

70.8

1975

831.9

93.5

1976

665.9

66.3

1977

634

79.9

1978

724.6

62.2

1979

697.5

63.8

1980

728.4

116.7

1981

594.9

62

1982

616.9

74.2

1983

711.9

83.3

1984

671.3

72

1985

578.2

67.1

1986

559.6

60.5

1987

502.4

54.9

1988

441.9

66.2

1989

510.7

58.5

1990

480.9

48.2

1991

445.6

42.1

1992

595.6

69.7

1993

485.4

53.1

1994

653.5

66.7

1995

88.5

90.6

1996

834.2

83.1

1997

918.3

77.2

1998

1005.1

122.9

1999

973.4

69.5

2000

926.3

78.1