l-'A LCON IDyhl — THE FA LVOS S. 



143 



Aihilf mdlc. Tail lifjlit ash, tipped willi wliitc, anil crossed l\v throe or 

 finn- noarly ooiitiniioiis narrow liamls of black (i-'xti'iuling over botli 

 webs, and erossin,!;; the shaft), anterior to the broad subterniinal zon(!, 

 the black of which does not rnn forward along the edge of the feathers. 

 Inner web of longest j)riinary with seven to nine transverse spots of 

 white. Streaks on the cheeks sparsi; and fine, not condensed into a 

 "ninstaclie." IV<toral markings broad clear brown. Ochraceons wash 

 ■weak across the nape and breast, and along sides, and very deep on the 

 tibia'. Adult female. Aljovo ])lnnd)eons-nniber, without rusty margins 

 to tiie leather.^, and without consi)icnous iilack .'<haft-streaks. Tail with 

 only live (one concealed) narrow bands of pale ochracci>us; outer webs 

 of piimaries without ochraceons spots; iimer web of outer prinuuv 

 with eigiit si)ots of white. Youiif/. Like tiie adult female, liul darker. 

 Wing, 7.0(1 -8.25; tail, 5.15 -.5.25 ; t.xrsii.s, 1.00; middle toe, 1.25. 

 ITah. Entire continent of North America ; West Indies. 



var. c olumhariu n 

 b. Adult male not bluish? sexes similar? upper parts with lighter trans- 

 verse spots. 



Adult. Above light grayish-umber, or earth-brown, with more or less 

 distinct lighter transverse spots : secondarie-i oro.ssed by three bands of 

 ochraceons .spot.s, and outer webs of inner primaries usually with .spots 

 of the same. Tail invariably witii six complete and continuous narrow 

 bands of dull white. Beneath white, with oroad longitudinal markings 

 of ligiit brown, these finer and hair-like on the tibi;u and cheeks, 

 where they are sparse and scattered, not forming a " mustache." Top 

 of the head mucii ligiiter than the back. Young. Similar, but much 

 tinged with rusty above, all the -white portions inclining to pale ochra- 

 ceons. Wing, 7.70-9.00; tail, 5.00 -0.30; culmen, ..50- .00 ; tarsus, 

 1.40-1.05; middle too, 1.20-1.51. Secon.I and tliird quills longest ; 

 first equal to fourth, slightly shorter, or sometimes slightly longer. 

 Huh. Interior plains of North America, l)etween the Mississippi River 

 and the Rocky Mountains, from the Arctic regions to Texas. 



var. (?) richa rdsoni, 

 c. Adult male not bluish? sexes similar? upper parts without transverse 

 spots, and tail without lighter bands, except at the tip. 



Above plain brownish-black ; the tail narrowly tipped with whitish, 

 but without other markings; inner webs of the primaries without 

 lighter spots. Beneath pale ochraceous broadly strijied with sooty- 

 black. Wing, 7,.35-8.50; tail, 5.25 -5.7o; culmen, .50 -.55; tarsu.s, 

 I.30-1.G2; middle toe, 1.25-1.35. Hab. Northwest coast rofion 

 from Oregon to Sitka . var? ,s« ,•^•^ey t. 



FulcoemcrnUi,, Saviosv, Descr. Egypt, Pt. 1, 1809, 100. Fuh, sibiricus, Shaw, Zool. VH 

 1812, 207. Fuho avsius, Mkyeu, Tas.;h. .leutsch. Vcig. I, 1810. Fako suba^suhn, Brkh.m. 

 Viig. l)cuts,;li. I, ]8;il, (i7. 



IlAn. EuroiMi ami Western A.sia I Iceland. 



Uitof Specimens examined. ~-F ^tioiiiA Museum, 8 ; Boston Society. 4; Cambridge Museum 

 y ; New York Museum, 2 ; Philadelphia Acad.'iiiy, S. Total, 20. 



Measurement.,. ~£. Wing, 7.60-8.00; tail, .5.10- , 5.30 ; culim-n, .45-.50; tarsus, 1 35 - 

 1.45; middle toe, 1.15: spmnien.s. 10. 9. Wing, 8.60-9.00; tail, 6.00-6.30; culmen, 

 .52-.55; tarsus, 1.45-1.47; middle toe, 1.20-1.25: specimens, 10. 



