392 



Catalogue of the Birds 



Subgenus Ilijdrochdidon, Boie. 



*304:. S. Jissipes L i n u . Bhick Tern; Short-tailed Tern. Summer 

 sojoui-ner. 



Older P Y G O r O D E S . 



F'amily COLYMBIDil^:. The Loons. 



Genus Colymbu^, Linnaeus. 



305. C. glacialis Linn., vur. torquatus Briinn. Great Northern 

 D i ver ; Loon . W i n t e r soj ou r n e r . 



306. C. arcticus Linn. Black-throated Loon. Winter sojourner. 



307. C. septentrionalis h'wiQ. Red-throated Loon. Winter sojourner. 



Family PODICIPIDiE. The Grebes. 

 Genus Podiceps^ Latham. 



308. P. (jriseigcna (B o d d .), var. hulbolli Rein h . Red-necked Grebe. 

 Winter sojourner. 



*309. F. cristatus Linn. Crested Grebe. Resident in nortliern, and 

 winter sojourner in southern, portion. 



310. P. ff?«n^i«s (G m e 1 .), var. CalifornicusJjawr. American Eared 

 Grebe. Winter visitant. 



Genus Podilymhus, Lesson. 



*311. P. podlceps \ J inn. Tiiick-billed Grebe; Carolina Grebe. Resi- 

 dent. 



The following is the ratio of the number of species of each family rep- 

 resented in the avifauna of Illinois : — 



1. Mniotiltidne 3(i 



2. FriiiKillkUv ;!« 



3. AniituUe 34 



4. 8(;olop;ici(la3 25 



5. falcoiiidaj 20 



6. LarkUe 13 



7. IcteiidiB 11 



8. Strigidic 10 



9. Tiudid.T3 !t 



10. Tyraiinidic 



11. Picidrc !) 



12. Ardeidie •) 



13. Riillid;i! 8 



14. Vireonidre 7 



15. Troglodytidx (> 



IG. Iliriindihidiu- 



17. ParidiL" 5 



18. CliarjidridTO 5 



19. CorvidiB 4 



20. TetraonidiB 4 



21. Podicei)ida3 4 



22. Sylviidro 3 



23. Capi'iimilgidiB 3 



24. Phalanipochdic 3 



25. Colymbidte 3 



2(;. Laniidse 2 



27. Anipelidaj 2 



2H. Taiiagrida) 2 



2i). (JiicuIidaJ 2 



30. Cohinibidic 2 



31. (JathartidtB 2 



32. Kecuvvirostridie 2 



.■j3. Gniida3 2 



34. Ci(H)nida; 



35. Ibidida' 



3(). Saxic.olidic 



;i7. Cevlli i i<l as 



:!cS. Motacillidie 



3'.). Alaudida? 



40. A Irod ill id;c 



41. Cviisclida" 



42. 'ricM-|iilid;v! 



43. I'sillacida- 



44. .^Iflc,-iKri(ia> 



45. I'cidicida' 



4(i. ll:.uiMl<)|>.idida.> 



47. ( iraciilidn' 



48. I'dccuiiiiUv 



4U. Plotida) 



