169 
Table 1. -- Sample Counts of Breeding Stock‘in thé Sandhilis_° | | ~ 
EN ea nore re en ee ee 
| WESTERN EASTERN 
6/1 & 14 64,9, 6/5, 9,12, 6/7 ~ 6/2 
1948 &-14, 1949 & 13, 1950 1948 1949 1950 
. ga . | 
Sample (Sq. Mi.) 37.25 35 39 - 12 --- 9.4 
Number of Birds 1397 1150 1186 612 - --- 293 
Number of Pairs~™ 602 7227 “ ~587 °°" 301 meats 205 
Birds per Sq. Mi. 37 33 30 51 nage 31 
Pairs per Sq. Mi. 16 20 15 25 ve 22 

The sample used for Juue counts included more mileage and square 
mileage than did the sample used for July brood counts in the western 
Sandhills, In the eastern Sandhills high water prevented completion of 
the route in 1950. a T os | 
Because of flood waters of the Elkhorn the eastern route was not 
~ covered in June, 1949. 
Table 2. -- The Trend in Brood Occurrence as Shown by ‘July Brood Counts 
Date of Sample No. of No. of Young Broods/ Young / Percent 
Count (Sq. mi.) Broods © Young Per Brood Sq. Mi. Sq. Mi. Change 
WESTERN SANDHILLS 
July 6-9, 1948 33 40 272 7 1.2 8 
July 14, 1949 10 42. 269 oe *O . 4.2 27 228% inc. 
July 14-20, 1950 33 © 53 332 | 6 1.6 10 63% dec. 
EASTERN SANDHILLS * | 
July 12, 1948 12 20 153 7 b. 13 
July 11,12, 1949 12, 32 250 8 ° 2.7 21 62% inc. 
July 25, 1950 12 26 193 _ 7 2.2 16 23% dec. 
SANDHILLS> 
July 6-12, 1948 45 60 425 ate 1.3 9 
July 11-14, 1949 22 74 519 7 . B.4 23 151% inc. 
; 1.8 1l 48% dec. 
ee ae 7 a wet am 
: The 33-Square mile sample includes Route A, the 10 square mile part of Route B 
used as a basis for reporting brood occurrence to the Fish and Wildlife Service, and 
Route D. . 
July 14-25, 1950 45 79 525 7 
Counts for the eastern Sandhills are based on the 12 square mile sample known as 
Route C, 
: The Data for the eastern and western Sandhills were combined to produce the 
tabular estimate of the trend for the Sandhills. 
