ABBREVIATIONS OF THE WORKS CHIEFLY CITED 



Bechst. Gemeinn. Naturg. Deutsch. Bechstein (J. M.), Gemeiiiniitzige 



Naturgeschichte Deutschlands nach Allen drey Reichen (1789-95) 

 Berez. and Bianchi Ptitz. Gan-su. Berezowski (M.) and Bianchi (V.), 



Aves expeditions Potanini per provinciam Gan-su et confinia 1884-87 



(1891) (in Russian] 

 David and Oust. Ois. Chine. David (A.)et Oustalet (E.), les Oiseaux de 



la Chine (1877) 

 Defilippi Viagg. Pers. Filippo Defilippi, Note de un Viaggio in Persia nel 



1862 (1865) 

 Dresser. Dresser (H. E.), A History of the Birds of Europe, including all 



the species inhabiting the Western Palaearctic Region (1871-81), Sup- 

 plement (1895-96) 



Gould, B. of Eur. Gould (J.), The Birds of Europe (1832-37) 

 id. B. of Gt. Brit. id. Birds of Great Britain (1862-73) 

 id. B. of Asia, id. The Birds of Asia (1850-83) 

 id. B. of Austral., id. The Birds of Australia (1840-48) 

 Hempr. and Ehr. Symb. Phys. Aves. Hemprich (F. W.) et Ehrenberg 



(C. G.), Symbol* Physicse, seu Icones et Descriptions corporum 



Natnnuinm novorum aut minus cognitorum quae ex itineribus per 



Libyam, JEgyptum, Nubiam, Dongalam, Syriam, Arabiam, et Habessi- 



niam, &c. (1828-45) 

 Heuglin, Orn. N. 0. Afr Heuglin (Th. von), Ornithologie Nordost-Afrika's 



der Nilquellen-und Kusten-Gebiete des Rothen Aleeres und des nord- 



lichen Somal Landes (1869-74) 

 Hewitson. Hewitson (W. C.), Coloured Illustrations of the eggs of British 



Birds, accompanied with descriptions of the eggs, nests, &c., 3rd edition 



(1856) 

 Lilford. Lilford (Lord), Coloured figures of the Birds of the British Islands 



(1885-97) 

 Lorens, Beitr. Om. Nords. Kauk. Lorenz (Th.), Beitrag zur Kenntniss 



der Ornithologische Fauna an der Nordseite des Kaukasus (1887) 

 Midd. Sib. Reis. Middendorff (A. T. von), Reisen in den aussersten Norrlen 



und Osten Sibiriens, wahrend der Jahre 1843 und 1844, Vogel (Band ii.) 



(1851-53) 

 Naum. Naumann (J. F.), Naturgeschichte der Vogel Deutschlands nach 



eigenen Erfahningen entworfen (1822-60) 

 Newton. Yarrell's (W.), History of British Birds, 4th Edition. Vols. i. and 



ii. by Alfred Newton (1871-82) 



