Table A-3. Winter Waterfowl Surveys in Mexico 1978 vs. 1977. I 
East Coast 
Species 1978 
Dabblers 
Mallard 5 
Mexican duck 
Mottled duck 32 5 KO 
Gadwall 30,500 
Wigeon 119,625 
Green-winged 11,600 
Teal 
Blue-winged & 288,145 
Cinnimon Teal 
Shoveler 58,520 
Pintail 150,385 
Fulvous tree 35,725 
duck 
Black-bellied 
tree duck 
Subtotal 698,015 
Divers 
Redhead 268,550 
Canvasback 9,405 
Scaup 226215 
Ring-necked duck 225215 
Goldeneye 
Buf f lehead 190 
Ruddy duck 17,615 
Subtotal 544,190 
Miscellaneous 
Scoters 
Mergansers 940 
Unidentified 
Subtotal 940 
Total ducks 1,243,145 

1977 
340 
2,030 
38,675 
159,415 
88,675 
326, 560 
74,930 
381,520 
24,760 
1,096,905 
266,120 
4,365 
438,175 
37,025 
190 
13,005 
758,880 
5,635 
5,635 
1,861,420 
% change 
+ 
98 
36 
1 
+115 
48 
40 
NC 
+ 
35 
28 
83 
83 
33 

— 
Central & Interior Highlands 
1978 
3,530 
22,470 
29,608 
76,490 
176,345 
79, 800 
127,190 
183,435 
75 
2,875 
701,818 
690 
8,120 
47,850 
16,065 
75 
150 
72,950 
220 
17,410 
17,630 
792,398 
1977 
3,985 
7,365 
8,710 
17,030 
71,505 
12,470 
39,235 
101,035 
420 
261,755 
795 
5,170 
19,385 
6,775 
75 
1,085 
33,285 
305 
139,460 
139,765 
434,805 
% change~ 
leh 
+161 
+230 
+344 
+124 
+524 
+222 
+ 65 
+100 
+584 
+152 
- 13 
+ 54 
+147 
+136 
NC 
- 86 
+¥i9 
28 
88 

West Coast 
1978 
10 
20,171 
82,180 
204,215 
265,365 
167,432 
881,430 
21,720 
8,110 
1,650,633 
22,411 
512 
60,796 
872 
816 
2,097 
9,875 
97,379 
7,486 
7,010 
14,496 
1,762,508 
1977 
172 
7,065 
49,402 
189,031 
81,926 
91,597 
544, 538 
7,235 
10,352 
981,316 
32,489 
2,084 
110, 568 
77 
5,153 
46,629 
197,000 
18,529 
21,064 
39,593 
Ee 730 
06 
h change 
+100 
+186 
+ 66 
+ 8 
+224 
+ 83 
+ 62 
+200 
- 27 
+ 68 
31 
75 
- 45 
+100 
+960 
9 
= 79 
+ 5] 
- 60 
=a6:7 
G3 
9 + 45 
Table A-3 (Continued). _ 
—— = = teeeeiientinttee e — = he 
= Se ne win es es oes = ee —— ee — — — —_— — _—— 
- - - 
—-= -_———-— -_—— ae meee — --.= - 
Central & Interior Highlands West Coast 
Species 1978 1977. -% Chanke 1978 «+197 = 97 i, Chaat 
snes! oor" 197 oge 1978 «21977 4 Change” = 1978 —=«1977—~S—«Y Change _ 
Canada 4,200 1,530 +174 10-100 
Brant 
43,017 130R756 “fos 
White-front 9,550 8,420 + 3 34,450 14,940 + ag 2.137 1,068 +100 
Snow/ Blue os Gls 465 565795 Shegds |G. yg 600 4551 = BG 
Total Geese 39,365 10,415 +278 91,245 66,345 + 24 145, 854 1a5ecee ae og 
Coot 629,840 675,605 226 94,505 55,090 +62 131,645 106,872 + 23 
, iree ducks combined on East Coast. 
Percent change in comparable coverave. 
