Ornithology of Sardinia. 151 



Since writing the above, my friend, Mr. R. B. Sharpe, has 

 communicated to me his opinion that the specimens procured 

 by me in Sardinia are distinct from the Peregrine Falcon of 

 continental Europe, and has done me the honour to name 

 the species after me (Ann. & Mag. Nat. Hist. January 1873, 

 p. 21). 



14. Falco saker. 



There is an immature Falcon in the museum at Cagliari, 

 which Salvadori, in a note at the end of his list, refers to this 

 species. It was killed on the banks of the " stagno" of St. Gilla 

 in February 1842 ; and Cara mentions having received two 

 other specimens. I was not able to satisfy myself with respect 

 to this bird, owing to the careful manner (before mentioned) 

 in which all the cases in the museum were kept locked, and 

 the specimens stowed one behind the other in inextricable 

 confusion. 



15. Falco barbarus. 



I shot a pair of these Falcons on the island of Vacca, on 

 the 5th of May 1871. They were immature birds, male and 

 female, and had a peculiar worn and faded look, caused, I 

 think, by bad health, as on opening them I found a number 

 of some species of entozoon in their stomachs, which I see was 

 also the case with two Barbary Falcons shot by Mr. Salvin 

 in the Atlas Mountains (Ibis, 1859, p. 184). At the time I 

 took them for a pair of young unhealthy Peregrines, but 

 afterwards, being puzzled by them, showed them, amongst 

 others, to Messrs. J. H. Gurney, Gould, &c, who agreed in 

 considering them the true F. barbarus. 



The measurements of my birds do not agree entirely with 

 those given by Mr. Salvin, the female being 15^ inches in 

 length, and the male 15, whereas his birds measured respec- 

 tively 13£ and 13 inches. In length of wings they agree 

 with Mr. Salvias bird, the Sardinian specimens thus ap- 

 pearing much shorter -winged birds in proportion to their 

 length*. 



* [The difference is more apparent than real, the total lengths in onr 

 specimens having been taken from the skins. — Ed.] 



