BRITISH COLUMBIA AND HYPOTHETICAL LIST. 973 



Occurrence in British Columbia. — As above : Vancouver Island specimens are doubt- 

 fully referred to this form but they average lighter than those taken further north. 



Supposed Occurrence in Washington. — Doubtless the commoner form during the 

 migrations but alleged difference in coloration not sufficient to arouse suspicion afield. 



B. C. & H. No. 7. 



WILSON'S WARBLER. 



A. O. V. \o. 685. Wilsonia pusilla (Wils.). 



Description. — Similar to (['. p. pilcolata ( i;. z\ p. 208) but averaging smaller: coloration 

 duller, the upperparts more olivaceous, the yellow of underparts not so bright. Wing 2.16; 

 tail i.8g: bill .32; tarsus .70. 



General Range. — Eastern Xorth America west to eastern border of Great Plains, 

 casually west to and into Rocky Mountains during migrations; breeding north of L'nited 

 States to Labrador, Hudson Bay and Manitoba : south in winter to Santo Domingo and 

 eastern Mexico. 



Occurrence in British Columbia. — The Black-capped Warblers undoubtedly shade 

 into the duller form in the eastern portion of the Province during the migrations. Resident 

 birds at O'kanagan appear to be IV. p. pilcolata. 



Supposed Occurrence in Washington. — Probably casual during the migrations east 

 of the Cascades. 



B. C. & H. No. 8. 



AUDUBOX'S HERMIT THRUSH. 



A. O. L'. Xo. 759 a Hylocichia guttata auduboni (Baird). 



Synonjm. — RocKV Mountain Hermit Thrl'sh. 



Description. — "Similar in coloration to //. .s. sciiiioicnsis [</. ;■. p. 2,^7] but decidedly 

 larger" iRidgway). Wing 4.00: tail 2.95; bill .58: tarsus 1.18. 



General Range. — Breeding in Rocky Mountain district of L^nited States and British 

 Columbia from Arizona northward: also westward to Lower California and Nevada: south 

 in winter to Texas and the highlands of Guatemala. 



Occurrence in British Columbia. — Resident in the eastern portion of the Province. 



Supposed Occurrence in Washington. — Probably the resident form in Stevens County. 



B. C. & H. No. 9- 



LOXG-TAIl.El) CHICKADEE. 



.\. O. U. Xo. 735a Penthestes atricapillus septentrionalis (Harris) 

 Description. — Similar to P. atricapillus (17. z-. p. 273) but averaging larger and with 

 longer tail: coloration also clearer and brighter: wdiite edgings of w-ings and tail broader 

 and purer; black of cap rather more extensive; white of underparts purer. 



General Range. — Rocky Mountain region of United States and British Columbia, 

 Occurrence in British Columbia. — The resident form in the eastern part of the 

 Province, The "island" of true atricapillus probably encroaches upon our southern borders 

 but all my specimens have lieen labelled septentrionalis and have passed unchallenged in 

 the East. 



Supposed Occurrence in Washington. — Probably the resident form in the mountain 

 district of the extreme northeastern portion of the State. 



B. C. & H. No. 10. 



GRAY KIXOBIRD. 



-\. O. v. X'o. 445 Tyrannus dominicensis (Gmel.). 



Description. — Similar to T. tyrannus (q. v. p. 369) but larger: crown-patch as before 

 but upperparts grayish plumbeous, merely darker on head: below white, shaded with ashy 

 on breast and sides, under wing- and tail-coverts faintly tinged with yellow ; wings and tail 

 dusky, edged with whitish or yellowish, the tail barely touched on tip with whitish, five or 

 si.v outer primaries cniarginate. Length 9.00; wmg 4.50: tail 4.00; bill 1.00. 



General Range. — Florida and the \Vest Indies, north occasionally to South Carolina; 

 accidental in Massachusetts and British Columbia. 



Occurrence in British Columbia. — Accidental. A specimen was taken on Cape Beale 



