145 
5. Northeastern California 
a. Area - Not determined. 
b. Type - Natural marshes, lakes and artificial impoundments. 
c. Coverage - Aerial, complete 1949, 1950, 1951 and 1952 supplemented 
by ground checks. 
d. Production Summary: 
, Estimated Total Nesting Pairs Total Fall Population 
Species 1949 1950 1951 1952 1949 1950 1951 1952 
Canada Geese 1,460 1,950 2,000 2,560 9,538 12,000 13,350 14, 200* 
Mallard 2,550 2,650 4,460 7,120 9,900 10,500 23,540 50, 980 
Gadwall 2,240 1,660 1,470 820 8,300 9,000 9,250 6,810 
Pintail 1,400 1,750 1,970 2,440 5,350 6,800 7,190 16,230 
G-w. teal 50 10 30 40 150 60 140 200 
B-w. teal 115 15 20 20 430 680 110 120 
Cinn. teal 2,600 2,360 .1,150 770 9,600 14,000 5,400 4,840 
Shoveler 600 670 235 250 2,200 2,900 1, 500 1, 880 
Redhead 440 520 875 430 2,500 3,000 4,770 2,410 
Scaup 70 60 150 140 400 400 880 1,010 
Ruddy duck 540 275 290 100 2,500 1,800 1,500 440 
Others 280 250 320 90 1,200 1,200 1, 740 480 
Total (ducks)10,885 10,220 10,970 12,220 42,530 50,340 56,020 85,400 
Coots 1,020 1,450 1,710 1,650 4,150 7,400 12, 800 9,770 
* This figure includes 3, 260 non-breeding birds. 
e. Remarks: This area has shown an increase of about 20 percent in the 
nesting population over last year. The ideal weather and water conditions prevailing 
throughout the season increased brood survival which resulted in a significant 
increase in production to approximately 50 percent higher than last year. | 
6. Tule Lake, Lower Klamath Refuges (Klamath Basin). 
a. Area - 35,000 acres of water and marsh with surrounding cultivated 
grain lands. 
b. Type -Great Basin. Natural and managed marsh areas. 
c. Coverage - Ground observation (1949, 1950, 1951, 1952, supplemented 
with aerial counts in 1952). 
