common snowberry {r:^m>hcri.-ar;>.- r. al}:ii.-), crodinbush octv.nspray [rirl'uHscu.- ,:—,'oU>r) , 

 elderberry {;:,CT/-ucui; spp. ) . mountain alder [ALnur. //;-.•,;';. J , ninebark, quaking aspen 



iiPc'puI.u.': ii\ -ml Older. ) , red-osier dogwood {Cor>'ur. rt ^ro>:^ f. v.:! , redstem ceanothus^ 

 {Ccanuthic: r.,innuincuc) , Rocky Mountain maple [Acer ijlairic-) , syringia {rhil:Jclpli:in^ 

 Icui-i:^, thimbleberry {h-i!ur. i^arv! fLTur,) , western servicoberry [Ari,^Jar'h:.i'aln:j\^l:a), 

 and willow (r^^ilix spp.). Mur.f-, of the more densely forested portion of the plot south 

 of the railroad tracks has little or no ground cover, and ttie soil in these areas is 

 covered with a mat of needles and with scattered logs and branches. A t|u,inl i t .1 1 1 ve 

 survey of the vegetation gave the following results: trees, 3 in. (= 7.6 cm) 

 diameter and over, based on five n.l acre (-0.04 hal circular samples, 2421/ha 

 {■= 9R0/acre); total basal area 37 mVha (- 160.1 ff^/acre). Species of trees (figures 

 after each give number of trees/ha, number of trees/acre, relative density (',"), 

 relative dominance, and frequency, in that sequence): Douglas fir 760, 338, 34, 48, 

 100; western larch 716, 318, 32, 27, 100; western red cedar 414, 184, 19, 13, 80; 

 lodgepole pine [Pinus contorta) 86, 38, 4, 5, 40; water birch [Hctula occi(h:>it.ilic) 

 158, 70, 7, 3, 80; Rocky Mountain maple [Acer glahrwi) 9, 4, tr (= trace, or less 

 than 0.57o), tr, 20; ponderosa pine (.^'znus pondcror.a) 5, 2, tr, tr, 20; Rocky Mountain 

 juniper {Junivcrus r.copuJcDcn) 5, 2, tr, tV, 20. A few small Engelmann spruce [Picaa 

 cngclmannti), western hemlock {'T.-^uga hi^terophulla) and grand fir {Abies jrayidiir,) 

 were also found in the plot. Trees by diameter size class (figures after each class 

 given number of trees/ha, nuntier of trees/acre, relative density (%), basal area in 

 m^/ha, basal area in ft^/acre, relative dominance): A(8-15 cm = 3-6 in) 1278, 568, 

 58, 13.0, 56.8, 18; 8(15-23 cm = 6-9 in) 540, 240, 24, 16.5, 72.0, 22; C(23-78 cm = 

 9-15 in) 315, 140,14, 65.7, lll'.O, 35; 0(38-53 cm = 15-27 in) 41, 18, 2, 7.4, 32.4, 

 10; E(53-69 cm - 21-27 in) 27. 12, 1, 8.5, 37.2, 12; F(69-a4 cm = 27-33 iF} 5, 2, tr, 

 2.3, 9.8, 3. Shrub stems/ha, 5265; shrub stems/acre, 2340; ground cover 26".; canopy 

 cover 66%; average canopy height 22 m = 72 feet (range 18-30 m = 60-100 feet). Plant 



"kames fol low Hi tchcock and Cronquist's (1973) Flora of the Pa ci fic Northwest . Edge: 

 bordered on the north by the steep north bank of the Kootenai River and the slopes 

 of the Purccll Mountains, characterized near the plot by Douglas fir/ninebark 

 forests and relatively dry rocky outcrops; bordered to the south by U.S. Highway 2 

 south of which rise the lower slopes of the Cabinet Mountains, characterized near 

 the plot by the relatively moist western red ccdar/queencup beadlily and western 

 hemlock/queencup beadlily habitat types. A steep, rocky cliff rises above the high- 

 way just south of the western thi'-d of the plot. Weather: the spring of 1978 was 

 relatively moist and followed a severe winter; plant phenology was thus several days 

 behind the normal. Rain was occasionilly experienced during census runs, but 

 weather for the most part was clear to cloudy and dry. Coverage: May 7, 8, 9, 22, 

 25; June 5, 6, 7, 8. 9, 29, 30. All trips between 0515 and 2130 hours. Total 

 person-hours: 34.6. Census: violet-green swallow, 12(27, 11); yel 1 ow-rumped 

 warbler, 7 (16, 6); golden-crowned kinglet, 6(13, 5); Swainson's thrush, 5.5 (12, 5); 

 Townsend's warbler, 5.5 (12, 5); American robin, 4.5 (10, 4); yellow warbler, 4.5 

 (10, 4); dark-eyed junco, 4.5 (10, 4); rough-winged swallow, 4 (9, 4); dipper, 4 

 . (9, 4); red-eyed vireo, 4(9,4); black-capped chickadee, 3.5 (8, 3); song sparrow, 

 3.5 (8, 3); mallard, 2; warbling vireo, 2; Nashville warbler, 2; MacGi 11 i vray ' s 

 warbler, 2; American redstart, 2; brown-headed cowbird, 2; pine siskin, 2; spotted 

 sandpiper, 1.5; harlequin duck, 1; American kestrel, 1; conmon flicker, 1; Enipidonax 

 flycatcher (Hantnond's or Dusky), 1; tree swallow, 1; common crow, 1; western tanager, 

 1; common goldeneye, +; common merganser, +; osprey, +; common raven, +• varied 

 thrush, +. Total: 33 species, 91 territorial males or females (205/kmS 83 per 

 100 acres). Visitors: Canada goose, American wigeon, Barrow's goldeneye, mourning 

 dove, rufous hummingbird, calliope hummingbird, belted kingfisher, hairy woodpecker, 



^^llow flycatcher, Townsend's solitaire, cedar waxwing , orange-crowned warbler, 



^^zuli bunting, Lincoln's sparrow. Remarks: Five nests were located: common 



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