KEY TO THE BIRDS. 



10. Under parts rich yellow, yellow streak running from nostril back 



of eye, and two yellow wing bands. Colours much mixed 

 above, olive, green, or yellow ; chestnut streaks forming 

 patch across back ; sides of neck and body streaked with 

 black. 



Prairie Warbler. See page 105. 



11. Rich yellow lower breast and belly. Decidedly marked gray 



head and neck, the rest of upper parts yellowish olive. 

 Throat and upper breast usually black, veiled with ash-gray. 

 Wings and tail glossy olive-green. Upper mandible dark, 

 lower mandible and feet flesh-coloured. 



Mourning Warbler. See page 11O. 



12. Under parts, including wing and tail coverts, yellow, grading to 



white on middle of belly. Above olive, head masked with 

 black. Bill black ; flesh-coloured feet. 



Maryland Yellow-throat. See page 11O. 



13. Brilliant yellow throat, breast, and wing linings. Olive-green 



above ; strong, curving blue-black bill ; feet lead-coloured. 

 (Larger than the preceding species, voice strong.) 



Yellow-breasted Chat. See page 113. 



14. Yellow face, and under parts ; black hood, chin, and upper breast ; 



above rich olive. Bill black ; feet light. 



Hooded Warbler. See page 113. 



15. Above olive-yellow ; under parts rich yellow, shading to olive on 



the sides. Black cap. Bill dark above, lower mandible and 

 feet light. 



Wilson's Warbler. See page 114. 



16. Above ash-blue, crown spotted with arrow-shaped black marks 



blending on the brow. Below pure yellow with a showy 

 necklace of black longitudinal streaks on the breast. Yellow 

 line over eye, black patch under it. Bill dark ; feet flesh- 

 coloured. 



Canadian Warbler. See page 114. 



** Birds with thicker sparrow-like bills. 



17. Body, all but wings, tail, and frontlet, clear gamboge yellow. 



Frontlet black ; wings black, varied with white. 



American Goldfinch. See page 140. 



*** Large ground-feeding birds. 



18. Under parts bright yellow, black throat crescent. Much varie- 



gated above, general colour brown. Bill stout and straight, 

 strong legs, a walker. A ground feeder and meadow bird. 



Meadowlark. See page 17O. 

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