Perching Birds Marked With Yellow or Orange. 
685. Wilson Warbler (Wilsonia pusilla). L. 5. 
No white in plumage. Ad. o’. Crown shining bl ick; 
forehead, cheeks and underparts yellow; back olive- 
green. Ad. 9. Similar, but crown-patch often 
smaller, sometimes absent. Yung. 9. Crown-patch 
absent. Notes. Song, ’tsh-’tsh-‘tsh-’tshea. (Nuttall ) 
Suggests that of Redstart or Yellow Warbler. (Minot.) 
Range.—Eastern North America; breeds from Nova Scotia. north- 
eastern Maine, and Ontario north to Labrador and Hudson Bay re- 
gion; winters in Mexico and Central America; ‘‘occasional during mi- 
gration in Colorado... and other parts of the Rocky Mountain dis- 
trict" (Ridgw) (See page aaa 
685a. Pileolated Warbler (WW. p. pileolata). Sim- 
ilar to No. 685, but yellow deeper, clive brighter. 
Range.—Western North America; breeding throughout the Rocky 
Mountain district from western Texas in higher mountains, north- 
ward to Alaska, coast and interior; westward to eastern Oregon and 
Queen Charlotte Islands; 1n migrations over all of western North Amer- 
ica and east to Minnesota; in winter south to Central America. 
(Ridgw.) (See page 192.) 
685b. Golden Pileolated Warbler (H’. p. chryseo- 
la), Similar to No. 685a, but still brighter, richer 
yellow; forehead nearly orange; back brighter green. 
Range.—Pacific coast; breeds from southern California north to 
British Columbia; in migration east to eastern Oregon; south to 
Chihuahua and Lower California. (Ridgw.) (See page 192.) 
677. Kentucky Warbler (Geothlyps formosa). L. 
5.6. No white in plumage. 4d. o'. Cheeks and 
crown black. the latter tipped with ashy; back olive- 
green; a yellow line over eye; below bright yellow. 
Ad. &. Similar, but less black in crown and on cheeks; 
yellow duller. Notes. Song, a loud musical whistle, 
turdie, turdle, turdle, suggesting notes of Carolina 
Wren. 
Range.—Eastern United States; breeds from Gulf States north to 
lower Hudson Valley, southern Michigan and eastern Nebraska; 
winters in Central and northern South America. 
681. Maryland Yellow-throat (Geothlypis trichas). 
L. 5.2; W. 2.1. 4d. g'. Forehead and cheeks black, 
bordered behind by ashy; back olive-green; throat and 
breast yellow, belly whitish washed with yellow, sides 
brownish. Ad. 2. No black mask; above dull olive- 
green, forehead brownish; throat and breast more or 
less washed with yellow, belly whitish, sides brown- 
ish. Yung. g. Similar to Ad. 2, but browner; breast 
yellow; cheeks and forehead with more or less _half- 
concealed black. Notes. Calls, pit, chit, or chack; 
song, variable, often wichity, wichity, wichity. 
Range.—‘‘Atlantic Coast district of United States; breeding In Vir- 
ginia, District of Columbia, Maryland and southern Pennsylvania 
(Carlisle), probably also in Delaware and southern New Jersey and 
In upland portions of Carolinas and Georgia;.... south in winter to 
Bahamas....’’ (Ridgw.) 
681a. Western Yellow-throat (G. %. occidentalis). 
Similar to No. 681d, but yellow below richer, border of 
mask whiter and broader. 
Range.—Arid western United States; east to western portions of 
Great Plains, north to Montana and eastern Washington (?); west to 
southern California; breeding southward to northern Chihuahua and 
northern Lower California; southward in winter to western Mexico and 
Cape St. Lucas. (Ridgw.) 
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