26 



BIRDS OF ILLINOIS. 



Aythya affinis. 

 Aythya collaris. 

 Erismatura rubida. 

 Phalacrocorax dilophus. 



60. (Stercorarius longicaudugj 



61. Colymbus auritus. 



62. Colymbus californicus. 

 59. Phalaerocorax dilophus. 63. Podilymbus podiceps. 



NOTE. The interrogation mark prefixed to some of the above species, implies doubt 

 as to whether they are restricted, as winter residents, to the southern portion of the 

 State. Species enclosed in parenthesis may be considered as accidental, being based on 

 a single known occurrence. 



C. Species occurring in Winter in the Northern portion of the State, 

 but not yet observed as far South as Mount Carmel, are the following: 



1. (Myadestes townsendi.) 



2. (Sialia arctica.) 



3. (Parus hudsonicus.) 



4. Lanius borealis. 



5. Ampelis garrulus. 



6. Coccothraustes vespertinus. 



7. Pinicola enucleator. 



8. Acanthis exilipes. 



9. Acanthis restrains. 



10. Plectrophenax nivalis. 



11. Calcarius pictus. 



12. (Rhynchophanes maccowni.) 



13. (Pica hudsonica.) 



17. Bubo subarcticus. 



18. Surnia caparoch. 



19. (Lagopus lagopus.) 



20. Somateria dresseri. 



21. Soinateria spectabilis. 



22. Oidemia americana. 



23. Oidemia velvetina. 

 Bissa tridactyla. 

 Larus glaucus. 

 Larus leucopterus. 

 Larus marinus. 

 Xema sabinei. 

 Sterna tschegrava. 

 Stercorarius pomarinua. 

 Urinator arcticus. 



14. Picoides arcticus. 



15. Ulula cinerea. 



16. Nyctala richardsoni. 



NOTE. Species in parenthesis may be considered as accidental. 



D. Summer residents of General Distribution. 



1. Turdus mustelinus. 



2. Merula migratoria. 



3. Mimus polyglottos. 8. 



4. Galeoscoptes carolinensis. 



5. Harp orb. ynchus rufus. 



6. Sialia sialis. 



7. Polioptila caerulea, 8. 



8. Parus carolinensis, S. 



9. Sitta carolinensis. 



10. Thryothorus ludovicianus, 8. 



11. Thryothorus bewickii, S. 



12. Troglodytes aedon. 



13. Cistothorus palustris. 



14. Cistothorus stellaris. 



15. Mniotilta varia, 8. 



16. Protonotaria citrea. 



17. Helmitherus vermivorus, S. 



18. Helminthophila pinus, 8. 



19. Compsothlypis americana. 



20. Dendroica sestiva. 



21. Dendroica crerulea, S. 



22. Dendroica albilora, 8. 



23. Dendroica pinus. 



24. Dendroica discolor. 



25. Seiurus aurocapillus. 



26. Seiurus motacilla, 8. 



27. Geothlypis formosa, 8. 



28. Geothlypis trichas. 



29. Icteria virens. 



30. Sylvania mitrata, 8. 



31. Setophaga ruticilla. 



32. Vireo olivaceus. 



33. Vireo gilvus. 



34. Vireo flavifrons. 



35. Vireo noTeboracensis. 



36. Vireo bellii. 



37. Lanius ludovicianus. 



38. Ampelis cedrorum. 



39. Progne subis. 



40. Petrochelidon lunifrons. 



41. Chelidon erythrogaster. 



42. Tachycineta bicolor. 



43. Clivicola riparia. 



44. Stelgidopteryx serripennis. 



45. Piranga erythromelas. 



46. Piranga rubra, 8. 



47. Spinus tristis. 



48. Ammodramus savanna, N. 



