338 Pelz ein: Bericht üb. die Leistungen in d. Naturgeschichte 



R Ridgway, Catalogue of the Birds ol' Illinois, 

 Normal. 111. 1881. 



R. Ridgway, A Revised Catalogue of the Birds 

 ascertained to occur in Illinois. Illinois State Laboratory of 

 Nat. Eist. Bull. N. 4. Bloomington 111. May. 1881. 181. 

 Besp. Bull. Nutt. Orn. Club VI 71. 



H. Nehrling, Beiträge zur Ornis des nördlichen 

 Illinois {Forts, v. 1880. 418). Journ. f. Ornith. 196, 439, Le- 

 bensw., Eier, Nisten. 



F. Trefz, Die Vögel des South Park in Colorado. 

 Monatschr. d. Ver. Schutz Vogelw. 1881. 280. (auch Nisten). 



F. M. D r e w , Field Notes on the Birds of Sao Juan 

 County, Colorado. Bull. Nutt. Orn. Club VI. 85 u. 138. 



H. Nehrling, Ornithologische Beobachtungen aus 

 Texas. Monatsch. d. Ver. Schutz Vogelw. 1880. 122, 

 1881. 111. 



W. Brewster, Notes on some Birds from Arizona 

 and New-Mexico with a Description of a sopposed new 

 Whip-poor Will. Bull. Nutt. Orn. Club VI. 65. 



R. Ridgway, List of Species of Middle and South 

 American Birds not contained in the Un. St. Nat. Museum 

 Proc. Un. St. Nat. Mus. 1881. 165 et 193. 



Salvin and Godman, Biologia Centrali-Americana 

 Aves pag. 129—200 t. 9—12. 



R. Ridgway, Notes on some Costa Rican Birds Proc. 

 Un. St. Nat. Mus. 1881. 333 (Sammlung von Don Zeledon). 



A. N ehr körn, Beschreibung yucatanischer Eier. 

 Journ. f. Orn. 65. 



P. L. Sclater, Monograph of the Jacamars and Puff 

 Birds (Galbulidae and Bacconidae) P. V (July). VI (No- 

 vember). 



Gould, Suppl. of Trochilidae P. II 1881 (contin. by 

 R. B. Sharpe). 



Graf Berlepsch, On some necessary Changes in the 

 Nomenclature of South American Birds. Ibis 239. 



P. L. Sclater and 0. Salvin, Descriptions of some 

 new Species of South American Birds of the families Ty- 

 rannidae and Formicariidae. Ibis 267. t. 9. 



