148 
Species 
Canada geese 1,460 
Mallard 
Gadwall 
Pintail 
Cinn. teal 
G-w. teal 
B-w. teal 
Redhead 
Shoveler 
Scaup 
Ruddy duck 
Others 
Totals 
Coots 
Estimated Breeding Pairs 
19491950 1951 1952 
1,950 2,000 2,560 
39, 326 35,593 36, 943 47,610 
2,823 2,072 2,275 2,310 
1,541 1,823 2,077 2,800 
3,460 2,930 1,823 3,390 
50 10 30 40 
115 100 20 z0 
508 540 963 510 
634 687 334 350 
70 60 150 140 
552 381 318 160 
330 436 340 410 
45,909 44,592 45, 273 57, 740 
1,920 3,036 4,154 6,290 
Total Fall Population 
1949 1950 1951 1952. 
9,538 12,000 13,350 14,200 
176,100 176,100 189,740 253, 330 
11,125 11,250 13,600 14,360 
6,050 7,250 7,725 18,030 
13,900 17,350 9,250 17,940 
150 60 140 200 
430 680 110 120 
2,830 3,100 5,220 2,710 
2,350 3,010 2,010 - 2,380 
400 400 880 1,010 
2,550 2,330 1,500 740 
1,450 2,240 2,000 2,080 
217,335 223,770 232,175 312,900 
7,750 14,400 24,300 37,940 
Nesting Studies 
Goose nesting studies were carried on at Honey Lake Refuge, along the 
Susan River, and at Tule Lake and Lower Klamath National Wildlife Refuges. 

Susan Honey Lake Tule Lake and Weighted 
Fate River Refuge Lower Klamath Refuges Average 
Hatching success 79 65 79 76 
Destroyed by Predator 12 | 21 3 ll 
Flooded - - 5 2 
Deserted 9 14 ll 10 
Unknown - - vA 1 
(Pe rcent) 100 100 100 100 
Total number of 
Nests found 57 58 201 316 
Along the Susan River 3.6 Canada goose nests were found per mile. 
A Duck Nesting Study was conducted on Tule Lake and Lower Klamath 
National Wildlife Refuges. The approximate mean hatching success for 8 species 
was 78 percent. Over 1,000 nests were located. Complete data will be published 
later. 
