TABLE A-6.--Distribution of wintering waterfowl, Central Flyway extended, 1963 and 1964 
[ Index numbers] 
Area 
1963 
1964 
Montana-- - - 
112,714 
160,609 
North Dakota- 
18,717 
67,847 
South Dakota- 
286,327 
364,069 
Wyoming- 
55,047 
55,062 
Nebraska - 
167,731 
218,025 
Colorado- 
246,465 
387,330 
Kansas- 
362,644 
394,349 
New Mexico- 
195,678 
119,593 
Oklahoma- 
264,778 
307,595 
Texas- 
2,319,848 
2,553,176 
Mexico: 
East coast- 
778,714 
338,519 
Central- 
307,784 
1,139,618 
Total- 
5,116,447 
6,105,792 
TABLE A-7.--Trend in waterfowl numbers, Central 
Flyway extended, winter survey, 1949 to 1964 
[ In thousands] 
Year 
Ducks 
Geese 
Coots 
Total 
1949- 
4,256 
1,031 
1,139 
6,426 
1950- 
5, 542 
839 
615 
6,996 
1951- 
4,733 
507 
375 
5,615 
1952- 
6,116 
409 
1,017 
7,542 
1953- 
5, 591 
512 
578 
6,681 
1954- 
6,441 
723 
1,322 
8,486 
1955- 
5,746 
521 
594 
6,861 
1956- 
7,814 
693 
1,025 
9,532 
1957- 
4,24s 1 
443 
364 1 
5,055 
1958- 
8,202 
567 
812 
9,581 
7,233 
425 
691 
8,349 
4,240 
501 
536 
5,277 
4,447 
461 
788 
5,696 
1962- 
3,434 
407 
643 
4,484 
1963-- 
4,021 
665 
429 
5,166 
1964- 
5,071 
654 
643 
6,369 
See note to table A-4. 
1 No surveys were conducted in Mexico in 1957. The data indicate that it is unlikely that surveys in the 
United States alone accurately revealed the trend in wintering population for either ducks or coots that year. 
42 
