Xll 



LIST OF ILLUSTRATIONS 



25. Black and White Warbler, head 



26. Solitary Vireo, head . 



27. Warbling Vireo, head 



28. Red-eyed Vireo, head . 



29. Loggerhead Shrike, head 



30. Northern Shrike, head 



31. Rough-winged Swallow, head and breast 



32. Bank Swallow, head and breast . 



33. Tree Swallow, head and breast 



34. Barn Swallow, tail 



35. Cliff Swallow 



36. Rose-breasted Grosbeak, Female, head and breast 



37. Towhee, head and breast 



38. Towhee, tail ..... 



39. Song Sparrow, head and breast 



40. Slate-colored Junco, head and breast . 



41. Slate-colored Junco, tail . 



42. Field Sparrow, head .... 



43. Chipping Sparrow, head . 



44. Tree Sparrow, head and breast . 



45. White-throated Sparrow, head 



46. White-crowned Sparrow, head 



47. Seaside Sparrow, head and breast . 



48. Sharp-tailed Sparrow, head and breast 



49. Henslow's Sparrow, head and breast 



50. Grasshopper Sparrow, head and breast 



51. Vesper Sparrow, head and breast . 



52. Pine Siskin, head and breast 



53. Redpoll, head and breast 



54. White-winged Crossbill, head and wings 



55. Purple Finch, Female, head and breast 



56. Bronzed Grackle, head 



57. Bronzed Grackle, tail 



58. Red-winged Blackbird, Female, head and breast 



59. Bobolink, Female, head and breast . 



60. Blue Jay, head .... 



61. Horned Lark, head and breast 



62. Nighthawk, head 



63. Nighthawk, wing .... 



64. Whip-poor-will, head . 



65. Northern Flicker, head and breast . 



66. Red-headed Woodpecker 



