26 
Table A-5. Summation of residual cover measurements for 1978 stands of seeded nesting cover. 
























Visual obstruction Height 
Stand age = - =) 
(year) No. stands No. measurements X  +S.D. Range No. stands No. measurements xX +§.D. Range 
2 8 645 0.5 0.3 0.2-0.8 7 175 6.2 1.9 3,3-8,3 
3 31 3,000 1.0 0.4 0,2-2.2 29 700 6.0 2.1 2.0-9.6 
4 27 2,631 0.7 0.3 0.3-1.6 27 681 4.6 1.9 2.4-8.9 
5 23 2,200 0.9 0.5 0.1-2.0 23 530 5.3 2.0 2.5-9.9 
6 26 2,270 0.8 0.3 0.5-1.7 24 580 5.1 1.8 1,9-8.3 
7 13 1,300 0.9 0.3 0.3-1.6 13 325 4.5 1.6 2.1-6.6 
8 8 800 0.9 0.3 0.7-1.5 § 200 5.2 1.7 2.1-7.0 
9 2 125 0.7 0.0 0.7 2 50 5.2 0.6 4,8-5.6 
Table A-6. Summation of residual cover measurements for 1979 stands of seeded nesting cover. 
Stand age Visual obstruction Height : 
(year) No. stands No. measurements X +§.D. Range No. stands No. measurements X +5.D, Range 
2 7 700 1.3 0.4 0.8-1.9 7 175 8.1 1.8 5.7-10.8 
3 14 1,400 1.2 0.7 0,5-3,3 14 350 7.5 1.9 5.3-11.7 
4 30 3,000 1,2 0.3 0.7-2.0 29 750 5.4 1.6 1.9-8.7 
5 26 2,600 1.3 0.7 0,5-3.4 26 650 6.5 2.3 2.7-10.9 
6 22 2,200 1.1 0.4 0.4-1.8 22 550 5.6 1.5 4.1-9.5 
7 26 2,500 1.2 0.4 0.6-2.5 26 625 5.8 1.9 2.6-9.1 
8 11 1,100 1.2 0.3 0.8-1.7 11 275 5.1 1,2 2.8-6.6 
9 7 640 1.4 0.5 0.7-2.4 7 160 6.3 2.1 2.4-9.1 
10 ] 100 0.6 — 0.6 1 25 4,] — — 


GPO 834-679 

