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e. Remarks; This area shows a decrease of about 24 percent in the 
duck nesting population over last year. Brood production was also 
down, so that the total fall population was down about 33 percent 
over 1952, Both the breeding and fall populations of the Canada 
Geese were down 10 percent. Some flooding of goose nests occurred 
in the Goose Lake Area, which resulted in a lower production. The 
breeding population of Coots was up 125 percent and the fall population 
showed an increase of 115 percent over 1952. 
7. Tule Lake, Lower Klamath Refuges (Klamath Basin), 
a. Area - 35,000 acres of water and marsh with surrounding 
cultivated prain lands. 
b. Type - Great Basin. Natural and managed marsh areas, 
c. CGoverage - Ground observation 1950, 1951, 1952, 1953, supplemented 
with aerial counts in 1952 and 1953. 
d. Production summary: 
Estimated Total Nesting Pairs Total Fall Population 
Species 1950 1951 1952 1953 1950 1951 T T 
Canada Geese 1,300 1,500 640 430 10,300 11,500 5,040* 4, 730% 
Mallard 3,250 3,600 2,270 2,630 26,300 27,500 18,600 20, 000 
Gadwall 5,500 6,000 3,200 4,800 48,100 50,000 27,200 45, 800 
Pintail 505 400 440 280 6,510 3,400 3,230 2,000 
G-w. Teal 80 100 0 0 1,100 1, 000 0 0° 
B-w. Teal 295 150 100 60 2,560 1,250 710 460 
Cinn. Teal 2,300 2,000 1,210 1,130 £23,000 18,000 9,100 8, 640 
Shoveler 510 600 760 200 5,900 6,000 6,080 1, 370 
Redhead 5,000 4,800 2,800 3,270 49,400 45,000 22,100 28, 930 
Scaup 850 1,000 150 70 8, 400 9,000 1,230 620 
Ruddy duck 3,200 5,000 1,350 1,110 29,900 38,000 8,600 8, 100 
Others 260 300 20 10 2,400 3, 000 140 80 
Total (duck) 21,750 23,950 12,300 13,520 203,570 202,150 96,990 116,000 
Coot 5,000 6,000 3,900 4,500 36,000 40,000 24,000 27, 300 
*Includes 1,600 non-breeding birds in 1952 and 2,290 non-breeders in 1953, 
e. This important area showed a 33 percent decrease in breeding pairs of 
Canada geese and a 6 percent decrease in the total fall population. 
Nesting ducks showed an increase of 10 percent and a 20 percent 
increase in the total fall population. 
increase in breeding pairs and in the total fall population. 
8. State-wide Trend. 
Coots showed a 15 percent 
A comparative summary of nesting pairs of waterfowl for the past 
four seasons together with final fall population including young plus 
resident adults is shown in the following table. 
each year have been derived from the preceding tables, 
These figures for 
In almost 
