a= 
Table 6. -- Central Washington Waterfowl Population By Species, 1950 
a A I a a FRE LS SU a a dA ae 
a a en i 2 
North Central Washington South Central Washington Cent. Washington 
—_— ee ee ee OE Oe saington 
Residents Youn 
__Species 
Mallard 917 
Gadwall - 3 
Baldpate 18 
Pintail 18 
G-w. teal 72 
B-w. teal* 175 
Cinn,. teal* 31 
Shoveler 13 
Wood duck 109 
Redhead 353 
Ringneck © 30 
Scaup 3 
Bufflehead 
B. golden-eye 195 
W. harlequin 4 
Ruddy duck 504 
Am, merganser z 
Hooded merganser 
Canada goose ~ 
Coot 1,159 
»- Unidentified 137 
' Total 3, 643 
1,479 2,396 
. 
46 64 
29 47 
29 101 
178 353 
31 62 
23 36 
221 330 
611 864 
29 59 
3 
438 633 
6 10 
652 1, 156 
6 8 
2,935 4,094 
221 356 
6,934 10,577 
Total Residents Young. Total 
12,341 12,033 24,424 
135 302 437 
97 221 . 318 
204 484 688 
232 499 731 
746 1,690 2,436 
826 1,867 2,693 
187 309 496 
1,216 2,622 3,838 
330 279: 609 
8 8 
5 5 
28 28 
130 349 479 
19 19 
758 417 1,175 
l 1 
2,597 3,007. 5,604 
847 1,872 2,719 
375 1,012 1,387 
21,082 27,043 48,095 
_* Species totals computed from ratio of identified males. 
Total %Total 
26,820 45.7 
440 75 
382 65 
735 
832 
2, 790 
2,754 
532 
4,168 
1,473 
59 
11 
5 
661 1, 
489 
1,175 
1,183 
1 
5, 604 
6,813 
1, 745 
Nx Phe 
— 
N N 
ORMWOOOWMKF CORK UF OANA N 
oOo FE 
= 
—y 
Nm = oO 
58,672 
Waterfowl production studies made by Robert G. Jeffrey in Western Washington 
were a continuation of work started in 1949 when a series of brood trend plots were 
established which covered the better waterfowl breeding areas throughéut Western 
Washington. 
larger drainage ditches. 
by the addition of 14 new samples. 
Most of these were located on sections of lakes, river sloughs, and 
This year, the trend census was repeated and was enlarged 
The total number of such samples is now 49. 
However, comparisons in Table 7 represent plots which were censused both years. 

Table 7. -- Territorial Pair Counts, 1948, 1949, and 1950 
Species 1948 1949 u 1950 
Mallard 63% (55) 54% ( 70) 50% (35) 
Baldpate 2% ( 2) 
Pintail 1% ( 1) 1%( 1) 
G-w. teal 1% ( 1) 18% ( 11) 14% (10) 
B-w. & Cinn. teals 7% (6) 26% ( 34) 17% (12) 
Shoveler _ 1%. 6) 2% ( 2) 1% ( 1) 
Wood duck 21% (18) 8% { 10) 17% (12) 
Totals 100% (87) 101% (130) 99% (70) 
Each year represents five counts made within, the period from April 20 to June 25. 
