88 THE CONDOR Vol. XXIII 
counted that were seen in the space. being covered at the time; and it is believed 
that those missed altogether would about balance those counted twice. 
At the beginning of each census period the temperature in the shade of the 
high trees was recorded, using a common thermometer, which might not have 
been entirely accurate, though it shows well the variation in temperature at the 
different periods. 
The accompanying table gives the results of the census. The total number 
of species observed was thirty-five. In the table they are arranged in the order 
in which they are given in a report already published on the birds of the region 
(Dice, Auk, vol. 35, 1918, pp. 40-51, 148-161). The average number of species 
seen on each trip was about fifteen, and the average number of individuals was 
Fig. 19. THE ToUCHET VALLEY TWO MILES EAST OF PRESCOTT, WAILA 
WALLA COUNTY, WASHINGTON. THE VIEW IS TOWARD THE NORTH- 
WEST, AND THE CENSUS AREA IS ON THE RIGHT OF THE RIVER, BEGIN- 
NING A SHORT DISTANCE BEYOND THE BARN. 
about sixty-nine. ‘Two species, the Chipping Sparrow and the Robin, were seen 
at every period of observation. Four species, the Ruffed Grouse, Say Phoebe, 
Western Tanager, and Cedar Waxwing, were each seen but once. The other 
species occupy intermediate positions. 
From the table it will be seen that there is a somewhat regular variation in 
the number of individuals and species seen at the different periods. The number 
seen is greatest in the middle of the morning and is slightly less in the early 
morning and in the evening. It is not believed that the number of birds on the 
area varied much at the different times of day or from day to day. <A few 
birds undoubtedly came to the area to feed; some Lewis Woodpeckers, at least, 
came from the nearby woods to feed on the ripe cherries. Other rarer birds in 
moving about the valley occasionally visit the area; for instance, the Ruffed 
Grouse, which ordinarily lives in the denser woods along the stream, was noted 
once during this census. These normal movements, with species present in few 
