e8I 
Table X. - Summary of Colorado Duck and Goose Breeding-Pair and Production Surveys, 1952 and 1953 
I a 


Total Pairs Per Total Average Total Young Production Per 
Breeding-Pairs Square Mile Est. Broods Brood Size Produced Square Mile 
Area 1952 1953 1952 1953 1952 1953 1952 1953 1952 1953 1952 1953 
DUCKS 
North Park. - 5,675 - 9.3 - 3,736 6.7 6.1 - 22, 864 - 37.4 
South Platte Valley - - 1.1* 1,7 * - 1, 187 - 6.7 - 7,953 ~ 5.6 
Cache la Poudre Valley 1,029 1,619 3.0 4.7 781 743 «6.3 6.5 4,851 4,821 14.1 14,1 
Yampa Valley 1,790 1,500 8.1 6.8 1,360 1,030 6.4 6.5 8,670 6,690 39.4 30.4 
Brown's Park 291 372 «619.4 24.8 200 56 7.1 7.3 1,422 407 94.8 27.1 
White River Plateau 580 480 1.6 1.3 440 380 5.3 5.7 2,440 2,180 6.8 6,1 
South Park - 431 - - 2** - - ~ - - ~ 
San Luis Valley - - - - - - - - “ - - - 
GEESE 
Yampa Valley 120 130 a 6 40 90 3.4 6.0 140 540 ~6 ee 
Brown's Park 21 12 1.4 8 18 9 6.1 Bit 109 51 7.3 3.4 
Geese Total and 
Average 141 142 6 7 58 99 4.3 6.0 249 591 1.1 oud 


* Results of aerial trend counts. 
*%* No estimates of total production are available at this time. 
