XXXI. 



e. Head bluish-gray, whole under parts bright yellow. 



f. Forehead yellow, wings bluish. 



g. Head yellow, crown black. 



h. Head bluish, middle of back with a yellow patch, 

 (i). Larger. 

 (2). Smaller. 



2. Throat w'hite or whitish. 



a. Crown with two black stripes. 



b. Crown bluish-ash, back olive-green. 



c. Crown with a partially concealed patch of rufous- 



brown. 



d. Front of crown bright yellow, wing bars yellow. 



IV. Throat white or whitish, under parts streaked or spotted. 



A. Crown, rump, sides of breast yellow. 



B. No yellow on crown, rump or breast. 



1. With conspicuous wing-bars. 



a. Back bright bluish. 



b. Back grayish, crown black. 



c. Back greenish-yellow, sides chestnut. 



2. Without wing-bars. Walking Warblers. 



a. Middle of crown with a rufous streak. 



b. Crown plain, line over eye buff, 

 (i). Smaller. 



(2). Larger. 



c. Crown plain, line over eye white. 



3. Everywhere streaked black and white. 



V. Throat yellow, under parts streaked or spotted. 

 A. Belly white. 



Belly yellow. 

 . Under parts streaked with rufous-brown. 



a. Crown yellow. 



b. Crown chestnut, 

 (l). Under parts bright yellow. 

 (2). Under parts soiled yellowish. 



Under parts streaked or spotted with black. 



a. Back plain grayish, breast with a necklace of black 

 streaks. 



b. Back streaked with black, crown bluish. 



c. Back streaked with black, crown black, ear-coverts 

 rufous. 



d. Back with a patch of rufous-brown spots. 



e. Back black, tail with a white band across the middle. 



sg. Nashville Warbler. 

 53. Blue=winged Warbler. 

 86. Wilson Warbler. 



58. Northern Parula Warbler. 



59. Western Parula Warbler, and 



(Hypothetical') Parula Warb- 

 ler. 



52. Worni=eating Warbler. 

 57. Tennessee Warbler. 



56. Orange=crowned Warbler. 



(Hypothetical) Brewster Warb- 

 ler. (But see page 123.) 



63. Myrtle Warbler. 



B. 



65. Cerulean Warbler. 

 68. Black:=poll Warbler. 



66. Chestnut=sided Warbler. 



77. Oven=bird. 



78. Water=Thrush. 

 (Hypothetical) Qrinnell Water- 

 Thrush. 



79. Louisiana Water- 1 hrush. 

 go. Black and White Warbler. 



70. Sycamore Warbler. 



61. Yellow Warbler. 



75. Yellow Palm Warbler. 

 74. Palm Warbler. 



87. Canadian Warbler. 

 72. Kirtland Warbler. 



60. Cape May Warbler. 

 76. Prairie Warbler. 

 64. Magnolia Warbler. 



KEY TO THE FALL MALES, AND FEMALES. 



I. Under parts yellow or yellowish, unstreaked. 

 .-\. Tail with white spots. 



1. Wings with white bars. 



a. Entire under parts pure yellow. 



b. Throat yellow, belly white, 

 (i). Larger. 



(2). Smaller. 



c. Under parts pale yellowish. 



(i). Back bluish, without streaks. 

 (2). Back olive-green, without streaks. 

 (3). Back olive-green, streaked. 



(a). Under parts pale yellowish-white. 



(b). Under parts pale cream-buff. 



2. Wings without white bars. 



a. A white spot in the wing. 



b. No w'hite spot in the wing. 

 B. Tail without white spots. 



I. Entire under parts bright yellow. 



a. Upper parts bright olive-green. 



b. Upper parts bright greenish-yellow. 



c. Upper parts ashy-gray-greenish. 



6g. Magnolia Warbler. 



g8. Northern Parula Warbler. 

 g9. Western Parula Warbler. 



6g. Cerulean Warbler. 

 73- Pine Warbler. 



68. Black-poll Warbler. 

 67. Bay=breasted Warbler. 



62. Black=throated Blue Warbler. 

 8g. Hooded Warbler. 



86. Wilson Warbler. 

 61. Yellow Warbler. 

 55. Nashville Warbler. 



