'21 BIRDS OF ILLINOIS. 



II. CHARACTERISTIC FEATURES OF THE AVIFAUNA OF THE STATE. 



General Kemarks. Observations in many sections of the State 

 from which we as yet have no data, and also more extended inves- 

 tigations in those sections already explored, are necessary before 

 we can have an accurate knowledge of the distribution of the spe- 

 cies within our limits. At present we know the subject merely in 

 outline, and what we assume to know is undoubtedly subject to 

 greater or less modification according to the species involved in 

 the light of future information. The following tables are, therefore, 

 to be considered as provisional, and as expressing merely the 

 author's present knowledge of the subject, based in part on his own 

 explorations, but to a greater extent on the published records of 

 other observers. 



A. Species ivhich have 

 tion of the State, mmy of 



1. Merula migratoria. 



2. Sialia sialis. 



3. Regulus satrapa. 



4. Parus bicolor. 



5. Parus atrieapillus. 

 <i. Sitta carolinensis. 



7. Sitta canadensis. 



8. Tkryothorus ludovieianus. 



9. Troglodytes hyemalis. 

 lit. Anthus pensilvanicus. 

 11. Lanius ludovicanus. 

 V2. Ampelis cedrorum. 



13. Garpodacus purpuraus. 



14. LoxiH, minor. 



15. Loxialeueoptera. 



16. Acanthis linaria. 



17. Spinus tristis. 



18. Calcarius lapponicus. 



19. Zonotriehia albicollis. 



20. Spizella monticola. 



21. Junco hyemalis. 



22. Cardinalis cardinalis. 



23. Sturnella magna. 

 24?. Sturnella neglecta. 

 ~2"). Corvus sinuatus. 



2(5. Corvus amerieanus. 



J7. Cyanocitta cristata. 



28. Otocoris alpestris. 



29. Otocoris alpestris praticola. 

 W. Dryobates villosus. 



31. Dryobates pubescens. 



32. Sphyrapicus varius. 

 :;3. Ceophloeus pileatus. 



been observed in Winter over the [/rcatcr por- 

 them regular Winter residents. 



81. Melanerpes carolinus. 



35. Melanerpes erythroeephalus. 



36. Colaptes auratus. 

 3/. Asio wilsonianus. 

 33. Asio acclpitrinus. 



39. Nyctala aeadica. 



40. Megascops asio. 



41. Bubo virginianus. 



42. Syrnium uebulosum. 



43. Falco peregrinus. 



44. Falco eolurnbarius. 



45. Falco sparverius. 



46. Circus hudsonius. 



47. Accipiter atricapillus. 



48. Accipiter cooperi. 



49. Accipiter'velox. 



50. Buteo borealis. 



51. Buteo lineatus. 



52. Buteo pennsylvanicus. 



53. Archibuteo sancti-johannis. 



54. Aquila chrysa5tos. 



55. Haliaeetus leucocephalus. 



56. Ectopistes migratoria. 



57. Meleagris gallopavo. 



58. Bonasa umbellus. 



59. Tympanuchus pinnatus. 

 CO. Colinus virginianus, 



(il. Ardea herodias. 



62. Olor buccinator. 



G3. Olor columbianus. 



64. Chen hyperboreus. 



65. Chen coerulescens. 



66. Anser gambeli. 



